The name "Dovhomyl" is formed from the adverb "dovgo" (meaning 'long') and the adjective "mil" (meaning 'dear, beloved'). The Ukrainian name Dovhomyl is based on the recorded surname "Dovhomylya", as well as several ancient Proto-Slavic personal names and toponyms. For example, in records from 1565, "Iwan Dołhomil" can be found. The surname "Dovhomylya" is still used in Transcarpathia. The name "Dluhomil" was also known among the Czechs, while the name "Długomił" was recorded among the Poles in 1247.
