Wat Mongkolratanaram (Thai: วัดมงคลรัตนาราม) is a small Thai Buddhist temple located in Berkeley, California. A wat, it mainly attracts Thai American Buddhists, including many who are students at the University of California, Berkeley, but it also draws in many local, non-Buddhists who come searching for the authentic Thai food public brunch on Sundays or attend its frequent cultural events. The temple is home to a Thai school for San Francisco Bay Area youth, as well as Berkeley's Thai Cultural Center.
The Sunday brunch was subject to controversy in February 2009 when a group of neighbors sought to shut down the Sunday public brunch. The Zoning Adjustments Board of Berkeley voted 8 to 1 to keep the Sunday brunch.
The Thailand-born Ajahn Manat is the current abbot of Wat Mongkolratanaram.
In 1997 the Wat was home to the East Bay chapter of the Cypherpunks.