Cognomen Janpitak (Janpitak 
) , globally, is a rare family name. The family name Janpitak is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, Janpitak is the forename as well as the last name.
Krit, Nuchanart, Natphapas, Pannatorn, Warintorn, Nutjaree, Namphueng, Nattawut, Reungsak, Rachanon, Pichakit, Kanchaya, Apantree, Wannapa, Nonglak, Pronsri, Pensiri, Pakawan, Udom, Saree, Supis, Suwit, Jirat, Narin, Jiratchaya, Apaporn, Prasit, Reugsak, Natcha, Manoros, Sarayut, Alisara, Chayut, and Pattamavadee