Teaiwa is a surname. Notable people with the surname include:
Katerina Teaiwa, a Pacific scholar, artist and teacher of Banaban, I-Kiribati and African American heritage Teresia Teaiwa (1968–2017), an I-Kiribati and African-American scholar, poet, activist and mentor
See also Koriri Teaiwa Tenieu, an I-Kiribati politician