diff --git a/CHANGES.md b/CHANGES.md
index 4528e99..d0b44f6 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -7,6 +7,7 @@ Known issues:
 
 ## 4.7.1 (not yet released)
 
+- #103 `triton ip <inst>` to output the instance's primaryIp
 - #52 Workaround for `triton ssh ...`. In version 4.6.0, `triton ssh ...`
   interactive sessions were broken. This version reverts that change and adds
   a workaround for #52 (by disabling ControlMaster when spawning `ssh`).
diff --git a/lib/cli.js b/lib/cli.js
index 3e8800c..91b2f17 100644
--- a/lib/cli.js
+++ b/lib/cli.js
@@ -218,6 +218,7 @@ function CLI() {
             'stop',
             'reboot',
             'ssh',
+            'ip',
             { group: 'Images, Packages, Networks, Firewall Rules' },
             'image',
             'package',
@@ -569,6 +570,7 @@ CLI.prototype.do_start = require('./do_start');
 CLI.prototype.do_stop = require('./do_stop');
 CLI.prototype.do_reboot = require('./do_reboot');
 CLI.prototype.do_ssh = require('./do_ssh');
+CLI.prototype.do_ip = require('./do_ip');
 
 // Packages
 CLI.prototype.do_packages = require('./do_packages');
diff --git a/lib/do_instance/do_ip.js b/lib/do_instance/do_ip.js
new file mode 100644
index 0000000..ff6ee39
--- /dev/null
+++ b/lib/do_instance/do_ip.js
@@ -0,0 +1,71 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+/*
+ * Copyright 2016 Joyent, Inc.
+ *
+ * `triton instance ip ...`
+ */
+
+var format = require('util').format;
+
+var errors = require('../errors');
+
+
+function do_ip(subcmd, opts, args, cb) {
+    if (opts.help) {
+        this.do_help('help', {}, [subcmd], cb);
+        return;
+    } else if (args.length === 0) {
+        cb(new errors.UsageError('missing <inst> argument'));
+        return;
+    } else if (args.length > 1) {
+        cb(new errors.UsageError('too many arguments: ' + args));
+        return;
+    }
+
+    var cli = this.top;
+
+    cli.tritonapi.getInstance(args[0], function (err, inst) {
+        if (err) {
+            cb(err);
+            return;
+        }
+
+        if (!inst.primaryIp) {
+            cb(new errors.TritonError(format(
+                'primaryIp not found for instance "%s"', args[0])));
+            return;
+        }
+
+        console.log(inst.primaryIp);
+        cb();
+    });
+}
+
+do_ip.options = [
+    {
+        names: ['help', 'h'],
+        type: 'bool',
+        help: 'Show this help.'
+    }
+];
+
+do_ip.help = [
+    /* BEGIN JSSTYLED */
+    'Print the primaryIp of the given instance.',
+    '',
+    'Usage:',
+    '     {{name}} ip <inst>',
+    '',
+    '{{options}}',
+    'For example: ssh root@$(triton ip my-instance)'
+].join('\n');
+
+
+do_ip.completionArgtypes = ['tritoninstance', 'none'];
+
+module.exports = do_ip;
diff --git a/lib/do_instance/index.js b/lib/do_instance/index.js
index 199f566..9b0abbe 100644
--- a/lib/do_instance/index.js
+++ b/lib/do_instance/index.js
@@ -44,6 +44,7 @@ function InstanceCLI(top) {
             'disable-firewall',
             { group: '' },
             'ssh',
+            'ip',
             'wait',
             'audit',
             'snapshot',
@@ -72,6 +73,7 @@ InstanceCLI.prototype.do_enable_firewall = require('./do_enable_firewall');
 InstanceCLI.prototype.do_disable_firewall = require('./do_disable_firewall');
 
 InstanceCLI.prototype.do_ssh = require('./do_ssh');
+InstanceCLI.prototype.do_ip = require('./do_ip');
 InstanceCLI.prototype.do_wait = require('./do_wait');
 InstanceCLI.prototype.do_audit = require('./do_audit');
 InstanceCLI.prototype.do_snapshot = require('./do_snapshot');
diff --git a/lib/do_ip.js b/lib/do_ip.js
new file mode 100644
index 0000000..b974ac0
--- /dev/null
+++ b/lib/do_ip.js
@@ -0,0 +1,27 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+/*
+ * Copyright 2016 Joyent, Inc.
+ *
+ * `triton ip ...` shortcut for `triton instance ip ...`.
+ */
+
+var targ = require('./do_instance/do_ip');
+
+function do_ip(subcmd, opts, args, callback) {
+    this.handlerFromSubcmd('instance').dispatch({
+        subcmd: 'ip',
+        opts: opts,
+        args: args
+    }, callback);
+}
+
+do_ip.help = 'A shortcut for "triton instance ip".';
+do_ip.options = targ.options;
+do_ip.completionArgtypes = targ.completionArgtypes;
+
+module.exports = do_ip;
diff --git a/test/integration/cli-subcommands.test.js b/test/integration/cli-subcommands.test.js
index f9aab5f..1086341 100644
--- a/test/integration/cli-subcommands.test.js
+++ b/test/integration/cli-subcommands.test.js
@@ -43,6 +43,8 @@ var subs = [
     ['instance delete', 'instance rm', 'delete', 'rm'],
     ['instance enable-firewall'],
     ['instance disable-firewall'],
+    ['instance ssh'],
+    ['instance ip'],
     ['instance wait'],
     ['instance audit'],
     ['instance fwrules'],
@@ -51,6 +53,7 @@ var subs = [
     ['instance snapshot list', 'instance snapshot ls', 'instance snapshots'],
     ['instance snapshot get'],
     ['instance snapshot delete', 'instance snapshot rm'],
+    ['ip'],
     ['ssh'],
     ['network'],
     ['network list', 'networks'],