Meaning and name origin
Ota \o-ta\ as a boy's name is of Old German origin, and the meaning of Ota is "wealth". Ota is a variant of Otto (Old German): common in English-speaking countries until Otto von Bismarck's German armies became threateningly powerful in the early 20th century. A given name for baby boys that is rarely used.
Ota is not a popular first name for males but a very popular surname or last name for all people (#19018 out of 88799, Top 21%) (Source: 2000 U.S. Population Census).
Displayed below is a comparison of the popularity of the boy name Ota and its source form. The only popular variation form ranked in the Top 1000/100 is Otto (#627). (Source: 2014 Birth Name Statistics).