Cognomen Xianxin (Xianxin 
, 宪新 , 献新 ) , in all the world, is quite a rare surname. The cognomen Xianxin is habitual in Taiwan, where it is a rare surname, China, where it is a very rare surname, and Malaysia. Not in comparison with a country's population, it is commonest in China, Taiwan, and Spain. More prevalently, Xianxin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Xianxin | China, Spain, Malaysia, Taiwan, United States |
| 先新, 宪新, 献新 | China |
Хианхин, 仙信, 仙新, 仙鑫, 仙馨, 先信, 先心, 先忻, 先昕, 先欣, 先歆, 先炘, 先辛, 先鑫, 先馨, 冼信, 县心, 县新, 县欣, 县鑫, 咸信, 咸心, 咸新, 咸昕, 咸欣, 咸鑫, 娴心, 娴新, 娴欣, 娴歆, 娴鑫, 娴馨, 宪信, 宪心, 宪昕, 宪欣, 宪炘, 宪辛, 宪鑫, 宪锌, 宪馨, 岘心, 弦信, 弦心, 显信, 显心, 显忻, 显新, 显昕, 显欣, 显歆, 显炘, 显辛, 显鑫, 显馨, 暹鑫, 涎鑫, 献信, 献心, 献欣, 献歆, 献芯, 献薪, 献鑫, 献锌, 献馨, 现信, 现心, 现新, 现欣, 现辛, 现鑫, 現鑫, 綫伈, 纤心, 纤新, 纤昕, 线心, 线新, 羡心, 羡新, 羡欣, 羡歆, 羡锌, 蚬鑫, 衔新, 衔辛, 衔鑫, 贤信, 贤心, 贤忻, 贤新, 贤昕, 贤欣, 贤辛, 贤鑫, 贤锌, 贤馨, 锨新, 锨歆, 锨鑫, 闲欣, 限心, 险欣, 顯鑫, 鲜新, and 鲜鑫
Du, Deng, Lang, Long, Jian, Tang, Tian, Fang, Feng, Wang, Yang, Zeng, Zhao, Zhou, Shang, Cheng, Kuang, Liang, Jiang, Huang, Zhang, Zhong, Kong, Chen, Song, Meng, Li, Lv, Ji, He, Hu, Fu, Wu, Yu, Xu, Shi, Xiong, Sun, Ren, Gao, Guo, Liu, Luo, Wei, Yan, Yin, Qin, Qiu, Cai, and Zhuang