diff --git a/SUPPORTED_LANGUAGES.md b/SUPPORTED_LANGUAGES.md
index 59be83a32..378121903 100644
--- a/SUPPORTED_LANGUAGES.md
+++ b/SUPPORTED_LANGUAGES.md
@@ -211,6 +211,7 @@ jsx (queries only)[^jsx] | unstable | `HFIJ ` | @steelsojka
 [po](https://github.com/tree-sitter-grammars/tree-sitter-po) | unstable | `HF J ` | @amaanq
 [pod](https://github.com/tree-sitter-perl/tree-sitter-pod) | unstable | `H    ` | @RabbiVeesh, @LeoNerd
 [poe_filter](https://github.com/tree-sitter-grammars/tree-sitter-poe-filter)[^poe_filter] | unstable | `HFIJ ` | @ObserverOfTime
+[polar](https://github.com/osohq/tree-sitter-polar)[^polar] | unstable | `H    ` | @arusahni
 [pony](https://github.com/tree-sitter-grammars/tree-sitter-pony) | unstable | `HFIJL` | @amaanq, @mfelsche
 [powershell](https://github.com/airbus-cert/tree-sitter-powershell) | unstable | `HFIJL` | @L2jLiga
 [printf](https://github.com/tree-sitter-grammars/tree-sitter-printf) | unstable | `H    ` | @ObserverOfTime
@@ -356,6 +357,7 @@ jsx (queries only)[^jsx] | unstable | `HFIJ ` | @steelsojka
 [^php]: PHP with embedded HTML
 [^php_only]: PHP without embedded HTML
 [^poe_filter]: Path of Exile item filter
+[^polar]: Polar Authorization Language for Oso Cloud
 [^properties]: Java properties files
 [^query]: Tree-sitter query language
 [^sflog]: Salesforce debug log
diff --git a/lua/nvim-treesitter/parsers.lua b/lua/nvim-treesitter/parsers.lua
index 1aa37c35c..d60f4f373 100644
--- a/lua/nvim-treesitter/parsers.lua
+++ b/lua/nvim-treesitter/parsers.lua
@@ -1640,6 +1640,15 @@ return {
     readme_note = 'Path of Exile item filter',
     tier = 2,
   },
+  polar = {
+    install_info = {
+      url = 'https://github.com/osohq/tree-sitter-polar',
+      revision = 'b44da606fd7e095f2a17bfea49085635f2a6c3fb',
+    },
+    maintainers = { '@arusahni' },
+    tier = 2,
+    readme_note = 'Polar Authorization Language for Oso Cloud',
+  },
   pony = {
     install_info = {
       revision = '73ff874ae4c9e9b45462673cbc0a1e350e2522a7',
diff --git a/runtime/queries/polar/highlights.scm b/runtime/queries/polar/highlights.scm
new file mode 100644
index 000000000..24425f4e0
--- /dev/null
+++ b/runtime/queries/polar/highlights.scm
@@ -0,0 +1,75 @@
+; highlights.scm
+[
+  "cut"
+  "or"
+  "debug"
+  "print"
+  "in"
+  "forall"
+  "if"
+  "and"
+  "of"
+  "not"
+  "matches"
+  "type"
+  "on"
+  "global"
+] @keyword
+
+(identifier) @variable
+
+(namespaced_identifier) @variable
+
+(string) @string
+
+(boolean) @boolean
+
+(number) @number
+
+(resource_block
+  name: (namespaced_identifier) @type.definition)
+
+(resource_type) @constructor
+
+(operator) @operator
+
+(rule_functor
+  name: (namespaced_identifier) @function)
+
+(rule_functor
+  parameters: (_)*
+  (specializer
+    name: (namespaced_identifier) @variable.parameter))
+
+(rule_functor
+  parameters: (_)*
+  (specializer
+    type: (namespaced_identifier) @type))
+
+(rule_expression_functor
+  name: (namespaced_identifier) @function.call)
+
+(rule_expression_functor
+  parameters: (identifier) @variable)
+
+(dict_field
+  value: (namespaced_identifier) @type)
+
+(object_literal
+  name: (namespaced_identifier) @type)
+
+(comment) @comment
+
+; test stuff
+(test_header
+  "test" @module)
+
+(test_header
+  name: (string) @label)
+
+(test_setup
+  "setup" @module)
+
+(test_setup
+  (test_fact
+    name: (namespaced_identifier) @function))