Kynoch is a surname. Notable people with the surname include:
George Kynoch (disambiguation) George Kynoch (businessman) (1834–1891), founder of IMI plc, Conservative Member of Parliament (MP) for Aston Manor George Kynoch (Kincardine and Deeside MP) (born 1946), Scottish Conservative Party MP John Kynoch (born 1933), British sport shooter Sholto Kynoch, English pianist