Maci is a spelling variant of Macy, an English surname that came from Massy in Normandy and is usually explained as "Maccius's estate", from a Roman personal name; the department store gave it its all-American ring. The i ending matched the fashion of Kaci and Staci, and the name had its moment with the reality-show star Maci Bookout. Maci ranked number 765 in 2000, peaked at number 180 in 2011 and has fallen back to number 773 in 2025.