Aiyappa is a surname. Notable people with the surname include:
Apparanda Aiyappa (1913–?), British Indian Army officer Len Aiyappa (born 1979), Indian field hockey player Neravanda Aiyappa (born 1979), Indian cricketer Pramila Aiyappa (born 1977), Indian heptathlete Shubra Aiyappa (born 1987), Indian actress