Meaning and name origin
Isaiah \i-saiah\ as a boy's name is pronounced eye-ZY-ah. It is of Hebrew origin, and the meaning of Isaiah is "God is salvation". Biblical: one of the major prophets and writer of the Book of Isaiah. Isais is a Latin form. Basketball player Isiah Thomas.
For more information, see also the related boy name Esias.
There is 1 feminine form of Isaiah: Shaya.
Isaiah is a somewhat popular first name for males (#635 out of 1220, Top 52%) and also a somewhat popular surname or last name for all people (#56550 out of 88799, Top 64%) (Source: 2000 U.S. Population Census).
Displayed below is the baby name popularity of the name Isaiah for boys. Isaiah reached its highest rank of #39 in the U.S. in 2006 (Source: 2014 Birth Name Statistics).
Displayed below is a comparison of the popularity of the boy name Isaiah and its variant forms. Popular variation forms ranked in the Top 1000/100 are Isaiah (#48), Izaiah (#459) and Isiah. (Source: 2014 Birth Name Statistics).