Kaizer is an American spelling of Kaiser, the German word for "emperor", which descends from the Roman family name Caesar. The z gives the title a modern, trademark look and ties it to names such as Kylo and Kash. Kaizer had fewer than 10 births a year in 2000, stood at number 2546 in 2015, reached number 1239 in 2024 and ranks number 1301 in 2025.