Hayakawa (written: 早川) is a Japanese surname. Notable people with the surname include:

• Chuko Hayakawa (born 1945), Japanese politician
• Hiromi Hayakawa (1982–2017), Mexican singer
• Kazue Hayakawa (早川 一枝, born 1947), Japanese swimmer
• Kenichi Hayakawa (born 1986), Japanese male badminton player
• Kiyotaka Hayakawa (1946–2005), Japanese handball player
• Masato Hayakawa (born 1986), Japanese-American singer
• Nami Hayakawa (born 1984), Japanese athlete
• Norio Hayakawa (born 1944), American activist
• Noritsugu Hayakawa (1881–1942), Japanese businessman
• Ren Hayakawa (born 1987), Japanese female archer
• S. I. Hayakawa (1906–1992), semanticist and United States Senator from California
• Sakura Hayakawa (born 1997), Japanese rhythmic gymnast
• Sayo Hayakawa (born 1983), Japanese fashion model
• Sessue Hayakawa (1889–1973), motion picture actor
• Tokuji Hayakawa (1894–1981), founder of Hayakawa Kinzoku Kougyou (the present-day Sharp Corporation)
• Tomonobu Hayakawa (born 1977), former Japanese footballer
• Hayakawa Senkichirō (1863–1922), Japanese politician and president of the South Manchurian Railway
• Lady Hayakawa (died 1613), one of Hōjō Ujiyasu's daughters, married to Imagawa Ujizane

Fictional characters

• Aki Hayakawa (早川アキ), a fictional character from the Chainsaw Man manga series

See also

• Hayakawa Award, an award chosen annually by the readers of Hayakawa's SF Magazine
• Hayakawa Publishing, a Japanese publisher
• Hayakawa Station, a railway station on the Tōkaidō Main Line of East Japan Railway Company in Odawara, Kanagawa Prefecture, Japan
• Hayakawa, Yamanashi, a town in Japan
• Hayakawa or Haya River, a river in Kanagawa, Japan