Jelena is the Serbian, Croatian and Montenegrin variant of the female given name Helen. The Serbian Cyrillic version is Јелена.
- Jelena of Zadar, Queen of Croatia
- Jelena Lijepa, Queen of Croatia
- Jelena Urošević Vukanović, Queen consort of Hungary
- Jelena Anžujska, Serbian Queen
- Jelena of Bulgaria, Empress consort of Serbia
- Jelena Zrinska, Croatian countess
- Jelena of Serbia, Yugoslav princess
- Jelena Dokić, Australian tennis player of Serbian and Croatian origin
- Jelena Gruba, Queen of Bosnia
- Jelena Jensen, American glamour model and pornstar
- Jelena Janković, Serbian tennis player
- Jelena Karleuša, Serbian singer
- Jelena (album), her 1998 album
- Jelena Kostanić Tošić, Croatian tennis player
- Jelena Nikolić, Serbian volleyball player
- Jelena Rozga, Croatian singer
- Jelena Šubić, Croatian princess
- Jelena Tomašević, Serbian singer
- Jelena Veljača, Croatian actress
- A nickname given to Hollywood couple Justin Bieber and Selena Gomez by tabloids