Last name พระครู (Vicharn 
, Phrakhru , พระครู ) , globally, is a very rare surname. The cognomen พระครู is habitual in Thailand, where it is a very rare surname, the United Kingdom, where it is an extremely rare surname, and the United States. Measured by absolute frequency, it is commonest in Thailand, India, and the United Kingdom. Predominantly, พระครู is the forename as well as the last name.