Abiko (written: 安彦, 安孫子 or 我孫子) is a Japanese surname. Notable people with the surname include:
Kyutaro Abiko (我孫子 久太郎; 1865–1936), Japanese-born American businessman
Mitsuhiro Abiko (安孫子 充裕; born 1988), Japanese sprinter
Motoo Abiko (安孫子 素雄; born 1934), Japanese manga artist. His pen name is Fujiko Fujio A.
Takamasa Abiko (安彦 考真; born 1978), Japanese footballer
Tomomi Abiko (我孫子 智美; born 1988), Japanese pole vaulter