diff --git a/utils/build-presets.ini b/utils/build-presets.ini
index 5375ccf522152..4a851ac0d9900 100644
--- a/utils/build-presets.ini
+++ b/utils/build-presets.ini
@@ -1712,18 +1712,34 @@ install-swiftevolve
 # Test SourceKit-LSP
 #===------------------------------------------------------------------------===#
 
-[preset: buildbot_sourcekitlsp_macos]
+[preset: buildbot_sourcekitlsp_macos,no_sanitize]
 mixin-preset=mixin_swiftpm_package_macos_platform
 release
 assertions
 sourcekit-lsp
 
-[preset: buildbot_sourcekitlsp_linux]
+[preset: buildbot_sourcekitlsp_linux,no_sanitize]
 mixin-preset=mixin_swiftpm_package_linux_platform
 release
 assertions
 sourcekit-lsp
 
+[preset: buildbot_sourcekitlsp_macos,sanitize]
+mixin-preset=buildbot_sourcekitlsp_macos,no_sanitize
+test-sourcekit-lsp-sanitize-all
+
+[preset: buildbot_sourcekitlsp_linux,sanitize]
+mixin-preset=buildbot_sourcekitlsp_linux,no_sanitize
+test-sourcekit-lsp-sanitize-all
+
+# Default: no sanitizers
+[preset: buildbot_sourcekitlsp_macos]
+mixin-preset=buildbot_sourcekitlsp_macos,no_sanitize
+
+# Default: no sanitizers
+[preset: buildbot_sourcekitlsp_linux]
+mixin-preset=buildbot_sourcekitlsp_linux,no_sanitize
+
 #===------------------------------------------------------------------------===#
 # Test IndexStore-DB
 #===------------------------------------------------------------------------===#
diff --git a/utils/build_swift/build_swift/driver_arguments.py b/utils/build_swift/build_swift/driver_arguments.py
index c6588946be7ee..0fdd61854427a 100644
--- a/utils/build_swift/build_swift/driver_arguments.py
+++ b/utils/build_swift/build_swift/driver_arguments.py
@@ -572,6 +572,9 @@ def create_argument_parser():
            help='run indexstore-db tests under all sanitizers')
     option(['--sourcekit-lsp'], toggle_true('build_sourcekitlsp'),
            help='build SourceKitLSP')
+    option('--test-sourcekit-lsp-sanitize-all',
+           toggle_true('test_sourcekitlsp_sanitize_all'),
+           help='run sourcekit-lsp tests under all sanitizers')
     option('--install-swiftsyntax', toggle_true('install_swiftsyntax'),
            help='install SwiftSyntax')
     option('--swiftsyntax-verify-generated-files',
diff --git a/utils/build_swift/tests/expected_options.py b/utils/build_swift/tests/expected_options.py
index 3b3660ed5770e..08daafda65cf0 100644
--- a/utils/build_swift/tests/expected_options.py
+++ b/utils/build_swift/tests/expected_options.py
@@ -92,6 +92,7 @@
     'build_swiftevolve': False,
     'build_indexstoredb': False,
     'test_indexstoredb_sanitize_all': False,
+    'test_sourcekitlsp_sanitize_all': False,
     'build_sourcekitlsp': False,
     'install_swiftpm': False,
     'install_swiftsyntax': False,
@@ -507,6 +508,8 @@ class BuildScriptImplOption(_BaseOption):
     EnableOption('--test-indexstore-db-sanitize-all',
                  dest='test_indexstoredb_sanitize_all'),
     EnableOption('--sourcekit-lsp', dest='build_sourcekitlsp'),
+    EnableOption('--test-sourcekit-lsp-sanitize-all',
+                 dest='test_sourcekitlsp_sanitize_all'),
     EnableOption('--install-swiftsyntax', dest='install_swiftsyntax'),
     EnableOption('--swiftsyntax-verify-generated-files',
                  dest='swiftsyntax_verify_generated_files'),
diff --git a/utils/swift_build_support/swift_build_support/products/sourcekitlsp.py b/utils/swift_build_support/swift_build_support/products/sourcekitlsp.py
index d51e68d6259da..92b121f17a56c 100644
--- a/utils/swift_build_support/swift_build_support/products/sourcekitlsp.py
+++ b/utils/swift_build_support/swift_build_support/products/sourcekitlsp.py
@@ -35,7 +35,8 @@ def should_test(self, host_target):
 
     def test(self, host_target):
         indexstoredb.run_build_script_helper(
-            'test', host_target, self, self.args)
+            'test', host_target, self, self.args,
+            self.args.test_sourcekitlsp_sanitize_all)
 
     def should_install(self, host_target):
         return self.args.install_sourcekitlsp