Family name Tsz (Tsz 
) , throughout the world, is quite a rare cognomen. The last name Tsz is habitual in Hong Kong, where it is quite a common surname, Malaysia, where it is a rare surname, and New Zealand, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Hong Kong, China, and Malaysia. More prevalently, Tsz is the forename as well as the last name.
So, Chau, Chiu, Chow, Choi, Kwan, Kwok, Poon, Tang, Tong, Tsui, Fong, Fung, Wong, Yung, Yuen, Ying, Ching, Cheng, Chung, Leung, Tsang, Chan, Shek, Yip, Yau, Li, Lo, Ng, Ho, Ip, Yu, Mak, Mok, Chu, Lau, Yeung, Lam, Law, Lee, Liu, Lok, Lui, Tam, Tse, Wan, Wai, Yan, Lai, and Cheung