The ARM Guanajuato (PO-153) is a Durango-class oceanic patrol vessel in the Mexican Navy with a 57mm main gun turret and a helicopter landing pad, currently primarily used for drug interception and maritime security in Mexican territorial waters. It is also armed with SA-18 Grouse missiles. Like other ships of this class, it was designed and built in Mexican dockyards, and is sometimes referred to as a compact frigate. It was named after the Mexican state of Guanajuato.