Haimona is a both a given name and a surname. It is a Māori transliteration of the name Simon. Notable people with the name include:
As a given name
Haimona Pita Matangi (–1839), New Zealand tribal leader Haimona Patete (1863–1921), New Zealand Māori leader and religious founder
As a surname
Kelly Haimona (born 1986), New Zealand rugby union player