Family name บาช (Bat 
, บาช 
) , in all the world, is a common last name. The last name บาช is characteristic of Mongolia, where it is a common surname, Israel, where it is quite a common surname, and Martinique. Measured by absolute frequency, this name is the most popular in Israel, Mongolia, and Turkey. Likewise, บาช is the forename as well as the last name.