Last name 欧拉 (Olah 
, 欧拉 
) , around the globe, is a common family name. The surname 欧拉 is characteristic of Eastern Europe, particularly Hungary, where it is a common surname, Slovakia, where it is quite a common surname, and Romania. Measured by absolute frequency, it is the most numerous in Hungary, Romania, and the United States. Much less frequently, 欧拉 is the forename as well as the last name.