Meaning & Origin
Tatumn is a girl's and boy's baby name of Old English origin, a variant spelling of Tatum — from the Old English Tāta + tūn meaning 'Tata's homestead' or 'Tata's farm.' Tatum O'Neal, the youngest person to win an Academy Award (at age 10 for Paper Moon), made the surname famous as a given name.
Tatumn's variant spelling gives the established Tatum a more distinctive written form. It carries the same vintage American film-starlet quality as Tatum, with a slightly more unusual look on paper.