diff --git a/README.md b/README.md
index 480e243b3..15b97fb34 100644
--- a/README.md
+++ b/README.md
@@ -178,6 +178,7 @@ We are looking for maintainers to add more parsers and to write query files for
 - [x] [apex](https://github.com/aheber/tree-sitter-sfapex) (maintained by @aheber)
 - [x] [arduino](https://github.com/ObserverOfTime/tree-sitter-arduino) (maintained by @ObserverOfTime)
 - [x] [astro](https://github.com/virchau13/tree-sitter-astro) (maintained by @virchau13)
+- [x] [authzed](https://github.com/mleonidas/tree-sitter-authzed) (maintained by @mattpolzin)
 - [ ] [awk](https://github.com/Beaglefoot/tree-sitter-awk)
 - [x] [bash](https://github.com/tree-sitter/tree-sitter-bash) (maintained by @TravonteD)
 - [x] [bass](https://github.com/amaanq/tree-sitter-bass) (maintained by @amaanq)
diff --git a/lockfile.json b/lockfile.json
index 72c9a3cfa..b05825591 100644
--- a/lockfile.json
+++ b/lockfile.json
@@ -14,6 +14,9 @@
   "astro": {
     "revision": "e122a8fcd07e808a7b873bfadc2667834067daf1"
   },
+  "authzed": {
+    "revision": "1dec7e1af96c56924e3322cd85fdce15d0a31d00"
+  },
   "awk": {
     "revision": "374da90decaa60fea7a22490a77440ece6d4161d"
   },
diff --git a/lua/nvim-treesitter/parsers.lua b/lua/nvim-treesitter/parsers.lua
index 26a2bf8f5..d8dfb7124 100644
--- a/lua/nvim-treesitter/parsers.lua
+++ b/lua/nvim-treesitter/parsers.lua
@@ -117,6 +117,14 @@ list.astro = {
   maintainers = { "@virchau13" },
 }
 
+list.authzed = {
+  install_info = {
+    url = "https://github.com/mleonidas/tree-sitter-authzed",
+    files = { "src/parser.c" },
+  },
+  maintainers = { "@mattpolzin" },
+}
+
 list.awk = {
   install_info = {
     url = "https://github.com/Beaglefoot/tree-sitter-awk",
diff --git a/queries/authzed/highlights.scm b/queries/authzed/highlights.scm
new file mode 100644
index 000000000..7a4b85d1f
--- /dev/null
+++ b/queries/authzed/highlights.scm
@@ -0,0 +1,58 @@
+(identifier) @function
+
+(block
+  (relation
+    (relation_literal) @function.builtin
+    (identifier) @constant))
+
+(block
+  (permission
+    (permission_literal) @variable.builtin
+    (identifier) @type))
+
+; relations
+(rel_expression (identifier) @property)
+
+(relation
+  (rel_expression
+    (hash_literal)
+    .
+    (identifier) @constant))
+
+; permissions
+(perm_expression (identifier) @property)
+
+(call_expression
+  function: (selector_expression
+    operand: (identifier) @constant
+    field: (field_identifier) @function.method))
+
+(perm_expression
+  (stabby) @operator
+  . 
+  (identifier) @function)
+
+; misc
+[
+  (plus_literal)
+  (minus_literal)
+  (amp_literal)
+  (pipe_literal)
+] @operator
+
+[
+  (true)
+  (false)
+] @boolean
+
+(nil) @constant.builtin
+
+[
+  (caveat_literal)
+  (definition_literal)
+] @keyword
+
+[
+  (hash_literal)
+  (comment)
+] @comment
diff --git a/queries/authzed/injections.scm b/queries/authzed/injections.scm
new file mode 100644
index 000000000..321c90add
--- /dev/null
+++ b/queries/authzed/injections.scm
@@ -0,0 +1,2 @@
+((comment) @injection.content
+ (#set! injection.language "comment"))