Wakaba is a Japanese word and name meaning "young leaf". It may refer to:
- The wakaba / Shoshinsha mark, a sign put on new drivers' cars in Japan
- Objects
- IJN Wakaba, a Japanese Hatsuharu-class destroyer sunk at the Battle of Leyte Gulf in 1944
- JDS Wakaba (DE-261), the former IJN Nashi, a Japanese destroyer that was salvaged after being sunk in 1945
- People
- Murasaki Wakaba, a voice actor
- Popular culture
- Wakaba Shinohara, a character in the anime Revolutionary Girl Utena
- Wakaba (Suikoden), a character in the video game Suikoden II
- Hinata Wakaba, a character in the video game Rival Schools
- Tsukishima Wakaba, one of the four sisters in Cross Game
- Tamama Aliases is "Wakaba-1" from the anime Sgt. Frog