Family name Yuejun (跃君 
, Yuejun 
, 曰军 ) , in the world, is quite a rare cognomen. The surname Yuejun is habitual in Singapore, where it is a very rare surname, and China. More prevalently, Yuejun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 跃君, 曰军 | China |
| Yuejun | China, Italy, Singapore, Taiwan, United States |
| Юейун | Russia |
岳俊, 岳军, 岳君, 岳均, 岳峻, 岳浚, 岳珺, 岳琼, 岳筠, 岳軍, 岳钧, 岳骏, 悦俊, 悦军, 悦君, 悦均, 悦峻, 悦珺, 悦琼, 悦竣, 悦筠, 悦钧, 悦骏, 曰俊, 曰君, 曰均, 曰琼, 曰筠, 曰軍, 月俊, 月军, 月君, 月均, 月峻, 月浚, 月珺, 月琼, 月畯, 月筠, 月钧, 月骏, 樾军, 樾君, 樾琼, 玥俊, 玥军, 玥君, 玥均, 玥珺, 玥琼, 玥筠, 玥骏, 粤俊, 粤军, 粤君, 粤琼, 粤钧, 粵君, 约俊, 约军, 约君, 约均, 约琼, 约钧, 约骏, 越俊, 越军, 越君, 越均, 越峻, 越珺, 越琼, 越竣, 越筠, 越郡, 越钧, 越骏, 跃俊, 跃军, 跃均, 跃峻, 跃浚, 跃琼, 跃筠, 跃钧, 跃骏, 躍軍, 钺君, 钺钧, 阅军, 阅君, and 阅琼