diff --git a/pendulum/locales/pl/__init__.py b/pendulum/locales/pl/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/pendulum/locales/pl/custom.py b/pendulum/locales/pl/custom.py
new file mode 100644
index 00000000..d93465e5
--- /dev/null
+++ b/pendulum/locales/pl/custom.py
@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+
+"""
+pl custom locale file.
+"""
+
+translations = {
+    "units": {"few_second": "kilka sekund"},
+    # Relative time
+    "ago": "{} temu",
+    "from_now": "za {}",
+    "after": "{0} po",
+    "before": "{0} przed",
+    # Date formats
+    "date_formats": {
+        "LTS": "HH:mm:ss",
+        "LT": "HH:mm",
+        "L": "DD.MM.YYYY",
+        "LL": "D MMMM YYYY",
+        "LLL": "D MMMM YYYY HH:mm",
+        "LLLL": "dddd, D MMMM YYYY HH:mm",
+    },
+}
diff --git a/pendulum/locales/pl/locale.py b/pendulum/locales/pl/locale.py
new file mode 100644
index 00000000..7f83ee50
--- /dev/null
+++ b/pendulum/locales/pl/locale.py
@@ -0,0 +1,282 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from .custom import translations as custom_translations
+
+
+"""
+pl locale file.
+
+It has been generated automatically and must not be modified directly.
+"""
+
+
+locale = {
+    "plural": lambda n: "few"
+    if (
+        (
+            (0 == 0 and ((0 == 0)))
+            and ((n % 10) == (n % 10) and (((n % 10) >= 2 and (n % 10) <= 4)))
+        )
+        and (not ((n % 100) == (n % 100) and (((n % 100) >= 12 and (n % 100) <= 14))))
+    )
+    else "many"
+    if (
+        (
+            (
+                ((0 == 0 and ((0 == 0))) and (not (n == n and ((n == 1)))))
+                and ((n % 10) == (n % 10) and (((n % 10) >= 0 and (n % 10) <= 1)))
+            )
+            or (
+                (0 == 0 and ((0 == 0)))
+                and ((n % 10) == (n % 10) and (((n % 10) >= 5 and (n % 10) <= 9)))
+            )
+        )
+        or (
+            (0 == 0 and ((0 == 0)))
+            and ((n % 100) == (n % 100) and (((n % 100) >= 12 and (n % 100) <= 14)))
+        )
+    )
+    else "one"
+    if ((n == n and ((n == 1))) and (0 == 0 and ((0 == 0))))
+    else "other",
+    "ordinal": lambda n: "other",
+    "translations": {
+        "days": {
+            "abbreviated": {
+                0: "niedz.",
+                1: "pon.",
+                2: "wt.",
+                3: "śr.",
+                4: "czw.",
+                5: "pt.",
+                6: "sob.",
+            },
+            "narrow": {0: "n", 1: "p", 2: "w", 3: "ś", 4: "c", 5: "p", 6: "s"},
+            "short": {
+                0: "nie",
+                1: "pon",
+                2: "wto",
+                3: "śro",
+                4: "czw",
+                5: "pią",
+                6: "sob",
+            },
+            "wide": {
+                0: "niedziela",
+                1: "poniedziałek",
+                2: "wtorek",
+                3: "środa",
+                4: "czwartek",
+                5: "piątek",
+                6: "sobota",
+            },
+        },
+        "months": {
+            "abbreviated": {
+                1: "sty",
+                2: "lut",
+                3: "mar",
+                4: "kwi",
+                5: "maj",
+                6: "cze",
+                7: "lip",
+                8: "sie",
+                9: "wrz",
+                10: "paź",
+                11: "lis",
+                12: "gru",
+            },
+            "narrow": {
+                1: "s",
+                2: "l",
+                3: "m",
+                4: "k",
+                5: "m",
+                6: "c",
+                7: "l",
+                8: "s",
+                9: "w",
+                10: "p",
+                11: "l",
+                12: "g",
+            },
+            "wide": {
+                1: "stycznia",
+                2: "lutego",
+                3: "marca",
+                4: "kwietnia",
+                5: "maja",
+                6: "czerwca",
+                7: "lipca",
+                8: "sierpnia",
+                9: "września",
+                10: "października",
+                11: "listopada",
+                12: "grudnia",
+            },
+        },
+        "units": {
+            "year": {
+                "one": "{0} rok",
+                "few": "{0} lata",
+                "many": "{0} lat",
+                "other": "{0} roku",
+            },
+            "month": {
+                "one": "{0} miesiąc",
+                "few": "{0} miesiące",
+                "many": "{0} miesięcy",
+                "other": "{0} miesiąca",
+            },
+            "week": {
+                "one": "{0} tydzień",
+                "few": "{0} tygodnie",
+                "many": "{0} tygodni",
+                "other": "{0} tygodnia",
+            },
+            "day": {
+                "one": "{0} dzień",
+                "few": "{0} dni",
+                "many": "{0} dni",
+                "other": "{0} dnia",
+            },
+            "hour": {
+                "one": "{0} godzina",
+                "few": "{0} godziny",
+                "many": "{0} godzin",
+                "other": "{0} godziny",
+            },
+            "minute": {
+                "one": "{0} minuta",
+                "few": "{0} minuty",
+                "many": "{0} minut",
+                "other": "{0} minuty",
+            },
+            "second": {
+                "one": "{0} sekunda",
+                "few": "{0} sekundy",
+                "many": "{0} sekund",
+                "other": "{0} sekundy",
+            },
+            "microsecond": {
+                "one": "{0} mikrosekunda",
+                "few": "{0} mikrosekundy",
+                "many": "{0} mikrosekund",
+                "other": "{0} mikrosekundy",
+            },
+        },
+        "relative": {
+            "year": {
+                "future": {
+                    "other": "za {0} roku",
+                    "one": "za {0} rok",
+                    "few": "za {0} lata",
+                    "many": "za {0} lat",
+                },
+                "past": {
+                    "other": "{0} roku temu",
+                    "one": "{0} rok temu",
+                    "few": "{0} lata temu",
+                    "many": "{0} lat temu",
+                },
+            },
+            "month": {
+                "future": {
+                    "other": "za {0} miesiąca",
+                    "one": "za {0} miesiąc",
+                    "few": "za {0} miesiące",
+                    "many": "za {0} miesięcy",
+                },
+                "past": {
+                    "other": "{0} miesiąca temu",
+                    "one": "{0} miesiąc temu",
+                    "few": "{0} miesiące temu",
+                    "many": "{0} miesięcy temu",
+                },
+            },
+            "week": {
+                "future": {
+                    "other": "za {0} tygodnia",
+                    "one": "za {0} tydzień",
+                    "few": "za {0} tygodnie",
+                    "many": "za {0} tygodni",
+                },
+                "past": {
+                    "other": "{0} tygodnia temu",
+                    "one": "{0} tydzień temu",
+                    "few": "{0} tygodnie temu",
+                    "many": "{0} tygodni temu",
+                },
+            },
+            "day": {
+                "future": {
+                    "other": "za {0} dnia",
+                    "one": "za {0} dzień",
+                    "few": "za {0} dni",
+                    "many": "za {0} dni",
+                },
+                "past": {
+                    "other": "{0} dnia temu",
+                    "one": "{0} dzień temu",
+                    "few": "{0} dni temu",
+                    "many": "{0} dni temu",
+                },
+            },
+            "hour": {
+                "future": {
+                    "other": "za {0} godziny",
+                    "one": "za {0} godzinę",
+                    "few": "za {0} godziny",
+                    "many": "za {0} godzin",
+                },
+                "past": {
+                    "other": "{0} godziny temu",
+                    "one": "{0} godzinę temu",
+                    "few": "{0} godziny temu",
+                    "many": "{0} godzin temu",
+                },
+            },
+            "minute": {
+                "future": {
+                    "other": "za {0} minuty",
+                    "one": "za {0} minutę",
+                    "few": "za {0} minuty",
+                    "many": "za {0} minut",
+                },
+                "past": {
+                    "other": "{0} minuty temu",
+                    "one": "{0} minutę temu",
+                    "few": "{0} minuty temu",
+                    "many": "{0} minut temu",
+                },
+            },
+            "second": {
+                "future": {
+                    "other": "za {0} sekundy",
+                    "one": "za {0} sekundę",
+                    "few": "za {0} sekundy",
+                    "many": "za {0} sekund",
+                },
+                "past": {
+                    "other": "{0} sekundy temu",
+                    "one": "{0} sekundę temu",
+                    "few": "{0} sekundy temu",
+                    "many": "{0} sekund temu",
+                },
+            },
+        },
+        "day_periods": {
+            "midnight": "o północy",
+            "am": "AM",
+            "noon": "w południe",
+            "pm": "PM",
+            "morning1": "rano",
+            "morning2": "przed południem",
+            "afternoon1": "po południu",
+            "evening1": "wieczorem",
+            "night1": "w nocy",
+        },
+    },
+    "custom": custom_translations,
+}
diff --git a/tests/localization/test_pl.py b/tests/localization/test_pl.py
new file mode 100644
index 00000000..926ee8a3
--- /dev/null
+++ b/tests/localization/test_pl.py
@@ -0,0 +1,111 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+import pendulum
+
+
+locale = "pl"
+
+
+def test_diff_for_humans():
+    with pendulum.test(pendulum.datetime(2016, 8, 29)):
+        diff_for_humans()
+
+
+def diff_for_humans():
+    d = pendulum.now().subtract(seconds=1)
+    assert d.diff_for_humans(locale=locale) == "kilka sekund temu"
+
+    d = pendulum.now().subtract(seconds=2)
+    assert d.diff_for_humans(locale=locale) == "kilka sekund temu"
+
+    d = pendulum.now().subtract(seconds=20)
+    assert d.diff_for_humans(locale=locale) == "20 sekund temu"
+
+    d = pendulum.now().subtract(minutes=1)
+    assert d.diff_for_humans(locale=locale) == "1 minutę temu"
+
+    d = pendulum.now().subtract(minutes=2)
+    assert d.diff_for_humans(locale=locale) == "2 minuty temu"
+
+    d = pendulum.now().subtract(minutes=5)
+    assert d.diff_for_humans(locale=locale) == "5 minut temu"
+
+    d = pendulum.now().subtract(hours=1)
+    assert d.diff_for_humans(locale=locale) == "1 godzinę temu"
+
+    d = pendulum.now().subtract(hours=2)
+    assert d.diff_for_humans(locale=locale) == "2 godziny temu"
+
+    d = pendulum.now().subtract(hours=5)
+    assert d.diff_for_humans(locale=locale) == "5 godzin temu"
+
+    d = pendulum.now().subtract(days=1)
+    assert d.diff_for_humans(locale=locale) == "1 dzień temu"
+
+    d = pendulum.now().subtract(days=2)
+    assert d.diff_for_humans(locale=locale) == "2 dni temu"
+
+    d = pendulum.now().subtract(weeks=1)
+    assert d.diff_for_humans(locale=locale) == "1 tydzień temu"
+
+    d = pendulum.now().subtract(weeks=2)
+    assert d.diff_for_humans(locale=locale) == "2 tygodnie temu"
+
+    d = pendulum.now().subtract(months=1)
+    assert d.diff_for_humans(locale=locale) == "1 miesiąc temu"
+
+    d = pendulum.now().subtract(months=2)
+    assert d.diff_for_humans(locale=locale) == "2 miesiące temu"
+
+    d = pendulum.now().subtract(months=5)
+    assert d.diff_for_humans(locale=locale) == "5 miesięcy temu"
+
+    d = pendulum.now().subtract(years=1)
+    assert d.diff_for_humans(locale=locale) == "1 rok temu"
+
+    d = pendulum.now().subtract(years=2)
+    assert d.diff_for_humans(locale=locale) == "2 lata temu"
+
+    d = pendulum.now().subtract(years=5)
+    assert d.diff_for_humans(locale=locale) == "5 lat temu"
+
+    d = pendulum.now().add(seconds=1)
+    assert d.diff_for_humans(locale=locale) == "za kilka sekund"
+
+    d = pendulum.now().add(seconds=1)
+    d2 = pendulum.now()
+    assert d.diff_for_humans(d2, locale=locale) == "kilka sekund po"
+    assert d2.diff_for_humans(d, locale=locale) == "kilka sekund przed"
+
+    assert d.diff_for_humans(d2, True, locale=locale) == "kilka sekund"
+    assert d2.diff_for_humans(d.add(seconds=1), True, locale=locale) == "kilka sekund"
+
+    d = pendulum.now().add(seconds=20)
+    d2 = pendulum.now()
+    assert d.diff_for_humans(d2, locale=locale) == "20 sekund po"
+    assert d2.diff_for_humans(d, locale=locale) == "20 sekund przed"
+
+    d = pendulum.now().add(seconds=10)
+    d2 = pendulum.now()
+    assert d.diff_for_humans(d2, True, locale=locale) == "kilka sekund"
+    assert d2.diff_for_humans(d.add(seconds=1), True, locale=locale) == "11 sekund"
+
+
+def test_format():
+    d = pendulum.datetime(2016, 8, 29, 7, 3, 6, 123456)
+    assert d.format("dddd", locale=locale) == "poniedziałek"
+    assert d.format("ddd", locale=locale) == "pon."
+    assert d.format("MMMM", locale=locale) == "sierpnia"
+    assert d.format("MMM", locale=locale) == "sie"
+    assert d.format("A", locale=locale) == "AM"
+    assert d.format("Qo", locale=locale) == "3"
+    assert d.format("Mo", locale=locale) == "8"
+    assert d.format("Do", locale=locale) == "29"
+
+    assert d.format("LT", locale=locale) == "07:03"
+    assert d.format("LTS", locale=locale) == "07:03:06"
+    assert d.format("L", locale=locale) == "29.08.2016"
+    assert d.format("LL", locale=locale) == "29 sierpnia 2016"
+    assert d.format("LLL", locale=locale) == "29 sierpnia 2016 07:03"
+    assert d.format("LLLL", locale=locale) == "poniedziałek, 29 sierpnia 2016 07:03"