Hayakawa is a Japanese surname, which may refer to:
- Places
- Hayakawa, Yamanashi, a town in Japan
- People
- Hiromi Hayakawa (born 1982), Mexican singer
- Sayo Hayakawa (born 1983), Japanese hostess and model
- S. I. Hayakawa (1906-1992), semanticist and United States Senator from California
- Hayakawa SenkichirÅ (1863-1922), Japanese politician and president of the South Manchurian Railway
- Sessue Hayakawa (1889-1973), motion picture actor
- Other
- Hayakawa Award, an award chosen annually by the readers of Hayakawa's SF Magazine