Ondaatje may refer to:
Christopher Ondaatje (1933-2026), Sri Lankan born Canadian-English businessman, philanthropist, adventurer, and writer Kim Ondaatje (born 1928), Canadian painter, photographer, and filmmaker Michael Ondaatje (born 1943) Sri Lankan-born Canadian novelist and poet Pearl Ondaatje, Sri Lankan radio personality Quint Ondaatje (1758–1818), Dutch patriot and politician
See also
6569 Ondaatje Ondaatje Letters Ondaatje Prize