Tini Whetu Marama Tirikatene-Sullivan (9 January 1932 - ), generally called Whetu Tirikatene-Sullivan, is a former New Zealand politician. She was an MP from 1967 to 1996, representing the Labour Party. At the time of her retirement, she was the second longest-serving MP in Parliament, being in her tenth term of office.

Tirikatene-Sullivan was first elected to Parliament in the Southern Maori by-election of 1967 , which was prompted by the death of her father, the long-serving Sir Eruera Tirikatene . She was re-elected by substantial majorities until the 1996 elections, when she the Southern Maori seat was abolished in the transition to MMP. Tirikatene-Sullivan then contested the new Te Tai Tonga seat, which covered much of the same territory as the old Southern Maori seat, but she was narrowly defeated by Tu Wyllie of New Zealand First. She subsequently retired from politics.

In 1993, Tirikatene-Sullivan was made a member of the Order of New Zealand, the highest award given by the New Zealand government.