diff --git a/Library/Homebrew/env_config.rb b/Library/Homebrew/env_config.rb
index a3b3124e36f0f..63f97e7df17f1 100644
--- a/Library/Homebrew/env_config.rb
+++ b/Library/Homebrew/env_config.rb
@@ -448,6 +448,10 @@ module EnvConfig
         default_text: "macOS: `/private/tmp`, Linux: `/tmp`.",
         default:      HOMEBREW_DEFAULT_TEMP,
       },
+      HOMEBREW_TEST_TIMEOUT_SECS:                {
+        description: "If set, use this value in seconds as the timeout for formula test runs.",
+        default:     600,
+      },
       HOMEBREW_UPDATE_TO_TAG:                    {
         description: "If set, always use the latest stable tag (even if developer commands " \
                      "have been run).",
diff --git a/Library/Homebrew/sorbet/rbi/dsl/homebrew/env_config.rbi b/Library/Homebrew/sorbet/rbi/dsl/homebrew/env_config.rbi
index d8e7fbb8b290b..0e54bd3ee21fd 100644
--- a/Library/Homebrew/sorbet/rbi/dsl/homebrew/env_config.rbi
+++ b/Library/Homebrew/sorbet/rbi/dsl/homebrew/env_config.rbi
@@ -280,6 +280,9 @@ module Homebrew::EnvConfig
     sig { returns(String) }
     def temp; end
 
+    sig { returns(Integer) }
+    def test_timeout_secs; end
+
     sig { returns(T::Boolean) }
     def update_to_tag?; end
 
diff --git a/Library/Homebrew/test.rb b/Library/Homebrew/test.rb
index 7a333b3606bbb..83fa39c7a6af5 100644
--- a/Library/Homebrew/test.rb
+++ b/Library/Homebrew/test.rb
@@ -16,8 +16,6 @@
 require "dev-cmd/test"
 require "json/add/exception"
 
-TEST_TIMEOUT_SECONDS = 5 * 60
-
 begin
   ENV.delete("HOMEBREW_FORBID_PACKAGES_FROM_PATHS")
   args = Homebrew::DevCmd::Test.new.args
@@ -49,7 +47,7 @@
   if args.debug? # --debug is interactive
     run_test.call
   else
-    Timeout.timeout(TEST_TIMEOUT_SECONDS, &run_test)
+    Timeout.timeout(Homebrew::EnvConfig.test_timeout_secs, &run_test)
   end
 rescue Exception => e # rubocop:disable Lint/RescueException
   error_pipe.puts e.to_json