diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -18,6 +18,8 @@
     'ArcanistAliasWorkflow' => 'workflow/ArcanistAliasWorkflow.php',
     'ArcanistAmendWorkflow' => 'workflow/ArcanistAmendWorkflow.php',
     'ArcanistAnoidWorkflow' => 'workflow/ArcanistAnoidWorkflow.php',
+    'ArcanistAnsibleLintLinter' => 'lint/linter/ArcanistAnsibleLintLinter.php',
+    'ArcanistAnsibleLintLinterTestCase' => 'lint/linter/__tests__/ArcanistAnsibleLintLinterTestCase.php',
     'ArcanistArrayCombineXHPASTLinterRule' => 'lint/linter/xhpast/rules/ArcanistArrayCombineXHPASTLinterRule.php',
     'ArcanistArrayCombineXHPASTLinterRuleTestCase' => 'lint/linter/xhpast/rules/__tests__/ArcanistArrayCombineXHPASTLinterRuleTestCase.php',
     'ArcanistArrayIndexSpacingXHPASTLinterRule' => 'lint/linter/xhpast/rules/ArcanistArrayIndexSpacingXHPASTLinterRule.php',
@@ -424,6 +426,8 @@
     'ArcanistAliasWorkflow' => 'ArcanistWorkflow',
     'ArcanistAmendWorkflow' => 'ArcanistWorkflow',
     'ArcanistAnoidWorkflow' => 'ArcanistWorkflow',
+    'ArcanistAnsibleLintLinter' => 'ArcanistExternalLinter',
+    'ArcanistAnsibleLintLinterTestCase' => 'ArcanistExternalLinterTestCase',
     'ArcanistArrayCombineXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
     'ArcanistArrayCombineXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
     'ArcanistArrayIndexSpacingXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
diff --git a/src/lint/linter/ArcanistAnsibleLintLinter.php b/src/lint/linter/ArcanistAnsibleLintLinter.php
new file mode 100644
--- /dev/null
+++ b/src/lint/linter/ArcanistAnsibleLintLinter.php
@@ -0,0 +1,103 @@
+<?php
+
+/**
+ * Uses "ansible-lint" to suggest improvements to Ansible playbooks.
+ */
+final class ArcanistAnsibleLintLinter extends ArcanistExternalLinter {
+
+  public function getInfoName() {
+    return 'Ansible-Lint';
+  }
+
+  public function getInfoURI() {
+    return 'https://pypi.python.org/pypi/ansible-lint';
+  }
+
+  public function getInfoDescription() {
+    return pht(
+      'Checks Ansible playbooks for practices and behavior '.
+      'that could potentially be improved.');
+  }
+
+  public function getLinterName() {
+    return 'ANSIBLE';
+  }
+
+  public function getLinterConfigurationName() {
+    return 'ansible-lint';
+  }
+
+  public function getDefaultBinary() {
+    return 'ansible-lint';
+  }
+
+  protected function getDefaultFlags() {
+    return array(
+      '-p', // parseable PEP8-format output
+    );
+  }
+
+  public function getVersion() {
+    list($stdout) = execx('%C --version', $this->getExecutableCommand());
+
+    $matches = array();
+    if (preg_match('/^ansible-lint (?P<version>\d+\.\d+(?:\.\d+)?)\b/',
+                   $stdout, $matches)) {
+      return $matches['version'];
+    } else {
+      return false;
+    }
+  }
+
+  public function getInstallInstructions() {
+    return pht('Install ansible-lint using `%s`.', 'pip install ansible-lint');
+  }
+
+  protected function parseLinterOutput($path, $err, $stdout, $stderr) {
+    $lines = phutil_split_lines($stdout, false);
+
+    $messages = array();
+    foreach ($lines as $line) {
+      $matches = null;
+      if (!preg_match('/^(.*?):(\d+): (\S+) (.*)$/', $line, $matches)) {
+        continue;
+      }
+      foreach ($matches as $key => $match) {
+        $matches[$key] = trim($match);
+      }
+      $message = new ArcanistLintMessage();
+      $message->setPath($matches[1]);
+      $message->setLine($matches[2]);
+      $message->setCode($matches[3]);
+      $message->setName('Ansible-Lint '.$matches[3]);
+      $message->setDescription($matches[4]);
+      $message->setSeverity($this->getLintMessageSeverity($matches[3]));
+      $messages[] = $message;
+    }
+
+    return $messages;
+  }
+
+  protected function getDefaultMessageSeverity($code) {
+    if (preg_match('/^ANSIBLE0003$/', $code)) {
+      return ArcanistLintSeverity::SEVERITY_ERROR;
+    } else {
+      return ArcanistLintSeverity::SEVERITY_WARNING;
+    }
+  }
+
+  protected function getLintCodeFromLinterConfigurationKey($code) {
+    if (!preg_match('/^(ANSIBLE)\d+$/', $code)) {
+      throw new Exception(
+        pht(
+          'Unrecognized lint message code "%s". Expected a valid Ansible-Lint '.
+          'lint code like "%s" or "%s".',
+          $code,
+          'ANSIBLE0002',
+          'ANSIBLE0007'));
+    }
+
+    return $code;
+  }
+
+}
diff --git a/src/lint/linter/__tests__/ArcanistAnsibleLintLinterTestCase.php b/src/lint/linter/__tests__/ArcanistAnsibleLintLinterTestCase.php
new file mode 100644
--- /dev/null
+++ b/src/lint/linter/__tests__/ArcanistAnsibleLintLinterTestCase.php
@@ -0,0 +1,10 @@
+<?php
+
+final class ArcanistAnsibleLintLinterTestCase
+  extends ArcanistExternalLinterTestCase {
+
+  public function testLinter() {
+    $this->executeTestsInDirectory(dirname(__FILE__).'/ansible-lint/');
+  }
+
+}
diff --git a/src/lint/linter/__tests__/ansible-lint/mismatched_curly_braces.lint-test b/src/lint/linter/__tests__/ansible-lint/mismatched_curly_braces.lint-test
new file mode 100644
--- /dev/null
+++ b/src/lint/linter/__tests__/ansible-lint/mismatched_curly_braces.lint-test
@@ -0,0 +1,3 @@
+foo: '{'
+~~~~~~~~~~
+warning:1:
diff --git a/src/lint/linter/__tests__/ansible-lint/should_use_file_arg.lint-test b/src/lint/linter/__tests__/ansible-lint/should_use_file_arg.lint-test
new file mode 100644
--- /dev/null
+++ b/src/lint/linter/__tests__/ansible-lint/should_use_file_arg.lint-test
@@ -0,0 +1,8 @@
+---
+
+- hosts: localhost
+  tasks:
+  - name: chmod
+    command: chmod 0700 ~/.ssh
+~~~~~~~~~~
+warning:5:
diff --git a/src/lint/linter/__tests__/ansible-lint/should_use_module.lint-test b/src/lint/linter/__tests__/ansible-lint/should_use_module.lint-test
new file mode 100644
--- /dev/null
+++ b/src/lint/linter/__tests__/ansible-lint/should_use_module.lint-test
@@ -0,0 +1,8 @@
+---
+
+- hosts: localhost
+  tasks:
+  - name: git repo
+    command: git clone https://github.com/phacility/arcanist.git
+~~~~~~~~~~
+warning:5:
diff --git a/src/lint/linter/__tests__/ansible-lint/trailing_whitespace.lint-test b/src/lint/linter/__tests__/ansible-lint/trailing_whitespace.lint-test
new file mode 100644
--- /dev/null
+++ b/src/lint/linter/__tests__/ansible-lint/trailing_whitespace.lint-test
@@ -0,0 +1,3 @@
+hosts: all 
+~~~~~~~~~~
+warning:1:
diff --git a/src/lint/linter/__tests__/ansible-lint/unversioned_git.lint-test b/src/lint/linter/__tests__/ansible-lint/unversioned_git.lint-test
new file mode 100644
--- /dev/null
+++ b/src/lint/linter/__tests__/ansible-lint/unversioned_git.lint-test
@@ -0,0 +1,10 @@
+---
+
+- hosts: localhost
+  tasks:
+  - name: git repo
+    git:
+      dest: ~/sources/arcanist
+      repo: https://github.com/phacility/arcanist.git
+~~~~~~~~~~
+warning:5:
diff --git a/src/lint/linter/__tests__/ansible-lint/unversioned_hg.lint-test b/src/lint/linter/__tests__/ansible-lint/unversioned_hg.lint-test
new file mode 100644
--- /dev/null
+++ b/src/lint/linter/__tests__/ansible-lint/unversioned_hg.lint-test
@@ -0,0 +1,10 @@
+---
+
+- hosts: localhost
+  tasks:
+  - name: hg repo
+    hg:
+      dest: ~/sources/hg
+      repo: http://selenic.com/repo/hg
+~~~~~~~~~~
+warning:5: