Ishaya is a given name and a surname. Notable people with the name include:
Ishaya Mark Aku (died 2002), Nigerian Minister of Sports Ishaya Audu (1927–2005), Nigerian doctor, professor, and politician Matthew Ishaya Audu (born 1959), Nigerian prelate of the Catholic Church Ishaya Bako (born 1986), Nigerian film director and screenwriter Ishaya Bakut (1947–2015), Military Governor of Benue State in Nigeria Ishaya Bamaiyi, GCON (born 1949), retired Nigerian Army Lieutenant General and former Chief of Army Staff Ishaya Shamasha Dawid Bet-Zia (1906–1985), Assyrian author, writer, and poet Ishaya Ibrahim (1952–2022), the 18th Chief of the Nigerian Naval Staff Tanko Ishaya, Nigerian professor of computer science, vice chancellor of the University of Jos William Ishaya, Iraqi diplomat Ishaya Shekari, the military Governor of Kano State