Hayakawa (written: 早川) is a Japanese surname. Notable people with the surname include:
Chuko Hayakawa (born 1945), Japanese politicianHiromi Hayakawa (born 1982), Mexican singerKenichi Hayakawa (born 1986), Japanese male badminton playerKiyotaka Hayakawa (1946–2005), Japanese handball playerNami Hayakawa (born 1984), Japanese athleteNorio Hayakawa (born 1944), American activistNoritsugu Hayakawa (1881–1942), Japanese businessmanRen Hayakawa (born 1987), Japanese female archerS. I. Hayakawa (1906–1992), semanticist and United States Senator from CaliforniaSakura Hayakawa (born 1997), Japanese rhythmic gymnastSayo Hayakawa (born 1983), Japanese fashion modelSessue Hayakawa (1889–1973), motion picture actorTokuji Hayakawa (1894–1981), founder of Hayakawa Kinzoku Kougyou (the present-day Sharp Corporation)Tomonobu Hayakawa (born 1977), former Japanese footballerHayakawa Senkichirō (1863–1922), Japanese politician and president of the South Manchurian RailwayLady Hayakawa (died 1613), a common nickname for one of Ujiyasu's daughters and Ujizane Imagawa's wife