diff --git a/collectors/0/mongo.py b/collectors/0/mongo.py
new file mode 100755
index 00000000..c698a3e8
--- /dev/null
+++ b/collectors/0/mongo.py
@@ -0,0 +1,81 @@
+#!/usr/bin/python
+#
+# mongo.py -- a MongoDB collector for tcollector/OpenTSDB
+# Copyright 2013 Tim Douglas, me@timdoug.com
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or (at your
+# option) any later version.  This program is distributed in the hope that it
+# will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+# General Public License for more details.  You should have received a copy
+# of the GNU Lesser General Public License along with this program.  If not,
+# see <http://www.gnu.org/licenses/>.
+
+import sys
+import time
+import pymongo
+
+HOST = 'localhost'
+PORT = 27017
+INTERVAL = 15
+METRICS = (
+    'backgroundFlushing.average_ms',
+    'backgroundFlushing.flushes',
+    'backgroundFlushing.total_ms',
+    'connections.available',
+    'connections.current',
+    'cursors.totalOpen',
+    'cursors.timedOut',
+    'dur.commits',
+    'dur.commitsInWriteLock',
+    'dur.compression',
+    'dur.earlyCommits',
+    'dur.journaledMB',
+    'dur.writeToDataFilesMB',
+    'extra_info.heap_usage_bytes',
+    'extra_info.page_faults',
+    'globalLock.lockTime',
+    'globalLock.totalTime',
+    'indexCounters.btree.accesses',
+    'indexCounters.btree.hits',
+    'indexCounters.btree.missRatio',
+    'indexCounters.btree.misses',
+    'indexCounters.btree.resets',
+    'mem.resident',
+    'mem.virtual',
+    'mem.mapped',
+    'network.bytesIn',
+    'network.bytesOut',
+    'network.numRequests',
+)
+TAG_METRICS = (
+    ('asserts',     ('msg', 'regular', 'user', 'warning')),
+    ('opcounters',  ('command', 'delete', 'getmore', 'insert', 'query', 'update')),
+)
+
+def main():
+    c = pymongo.Connection(host=HOST, port=PORT)
+
+    while True:
+        res = c.admin.command('serverStatus')
+        ts = int(time.time())
+
+        for base_metric, tags in TAG_METRICS:
+            for tag in tags:
+                print 'mongo.'+base_metric, ts, res[base_metric][tag], 'type=' + tag
+        for metric in METRICS:
+            cur = res
+            try:
+                for m in metric.split('.'):
+                    cur = cur[m]
+            except KeyError:
+                continue
+            print 'mongo.' + metric, ts, cur
+
+        sys.stdout.flush()
+        time.sleep(INTERVAL)
+
+if __name__ == '__main__':
+    main()