What does Iago mean?
Iago \i(a)-go\ as a boys' name is of Spanish and Welsh origin. Variant of James (Hebrew) "he who supplants". Santiago, the Spanish name for Saint James, was given to several geographical places in South America and the capital city of Chile. Literary: name of the villain in Shakespeare's "Othello".
Iago has 31 more related variations via James, Santiago: Diego▲, Diogo, Giacomo, Hamish, Jacob▲, Jacques▼, Jagu, Jaime▲, Jaimey, Jaimie, Jame, Jameson▲, Jamey▼, Jamie▼, Jamison▲, Jascha, Jayme, Jaymes, Jaymie, Jem, Jemmy, Jim▼, Jimbo, Jimmie▼, Jimmy▲, Sandiago, Sandiego, Santeago, Santiaco, Santigo and Seamus.
Iago is an unusual given name for men. Iago is an unusual surname too for all people. (2000 U.S. Census)
Jacob (#4 a year ago), James (#9), Santiago (#115), Diego (#129), Jameson (#159), Jamison (#440), Jaime (#468), Jimmy (#523), Jamie (#786), Seamus (#900), Jimmie, Jim, Jamey, Hamish, Jacques, Jame and Jayme are the prominent alternative forms of Iago (#unlisted). These boy names reached the apex of their popularity during the years 1970-1979 and are somewhat less popular today, with the forms Jamie, Jimmie, Jim, Jacques and Jamey falling out of fashion. The most fashionable names for newborns among these are Jameson (#159), Jamison (#440), Santiago (#115), Jacob (#4) and Diego (#129), with Diego, Jacob and Santiago undergoing a rebound in usage. Displayed below is an analysis of the popularity of the boy name Iago and corresponding names. (Top 1000 Baby Names Records, 2014)