Ichikawa (written: 市川 lit. "market river") is a Japanese surname. Notable people with the surname include:
- Akinori Ichikawa (市川 暉記, born 1998), Japanese footballer
- Ichikawa Danjūrō and Ichikawa Ebizō, stage names taken on by a series of kabuki actors of the Ichikawa family since the 17th century
- Daisuke Ichikawa (born 1980), Japanese football midfielder
- Fusae Ichikawa (1893–1981), Japanese feminist, politician and women's suffrage leader
- Haruyo Ichikawa (1913–2004), Japanese film actress
- Jun Ichikawa (1948–2008), Japanese film director
- Kon Ichikawa (1915–2008), Japanese film director
- Ichikawa Kumehachi (市川 九女八, 1846–1913), Japanese actress
- Mayumi Ichikawa (born 1976), Japanese long-distance runner
- Mikako Ichikawa (born 1978), Japanese actress and model, sister of Miwako Ichikawa
- Miori Ichikawa (born 1994), former member of NMB48
- Miwako Ichikawa (born 1976), Japanese actress, sister of Mikako Ichikawa
- Miyo Ichikawa (市川 美余, born 1989), Japanese actress
- Raizo Ichikawa (1931–1969), Japanese film and kabuki actor
- Stalker Ichikawa (born 1974), Japanese professional wrestler
- Taichi Ichikawa (市川太一), Japanese voice actor
- Takuji Ichikawa (born 1962), Japanese novelist
- Tatsuo Ichikawa (市川 辰雄, 1916–?), Japanese ice hockey player
- Tomoya Ichikawa (市川 友也, born 1985), Japanese baseball player
- Utaemon Ichikawa, (1907–1999), Japanese film actor
- Yoshiko Ichikawa (born 1976), Japanese long-distance runner
- Yosuke Ichikawa, keyboard player in the Japanese male pop band, The Babystars
- Yui Ichikawa (born 1986), Japanese actress and model, also known as Yui-nyan
- Yuichi Ichikawa, from the Japanese band the Indigo
- Yuki Ichikawa (市川 祐樹, born 1987), Japanese footballer