Most common surnames starting with I

According to the 1940 census, Ingram was the most common last name beginning with the letter 'I', followed by Irwin and Irvin. Click on the names below to learn more about their meaning, history and origins.

Surname Rank*
Ingram 1
Irwin 2
Irvin 3
Inman 4
Iverson 5
Ireland 6
Ivey 7
Irving 8
Isaacs 9
Ivy 10
Isaac 11
Ingle 12

* Based on population in the 1940 U.S. Census