Family name 吉泉 (吉泉 
, Jiquan 
, Yoshiizumi 
) , across the world, is quite a common last name. The last name 吉泉 is habitual in Eastern Asia, particularly Japan, where it is quite a rare surname, and China, where it is a very rare surname. Likewise, 吉泉 is the forename as well as the last name.