Submitted NameRevisions Save Type Surname Usage Japanese Pronounced Pron. Tah-nee-yah-ma [key] Edit Status Status [show contributorshide contributors] Added 11/18/2017 by ShioTanbo1 Edited 3/3/2018 by ShioTanbo1 Meaning & History Tani means "Valley" and Yama means "Mountains". Yutaka Taniyama was a Japanese mathematician.