Tiffany Adaeze Porter (née Ofili; born 13 November 1987) is a track and field athlete with joint British and American nationality who specialises in the 100 metres hurdles.

[6] Tiffany (Ofili) Porter (2006–09) is a five-time NCAA national champion and All-America selection during Hall of Fame University of Michigan Wolverines women's track and field career.

[8] As an American athlete, Porter represented the United States at the inaugural NACAC Championships winning a silver medal.

Thorp said that she would have congratulated an established British athlete who took her record; at the time Jessica Ennis and Sarah Claxton both had personal bests of 12.81s.

[11] Porter lowered her British record on 22 July 2011, with a time of 12.60s at the Diamond League meeting in Monaco, breaking her previous personal best of 12.73s (set when she was still a US athlete).

[14] UK Athletics head coach, Charles van Commenee gave Porter the responsibility of the team captaincy ahead of the 2012 World Indoor Championships in March;[15] she was subsequently labelled a "Plastic Brit" after refusing (or being unable) to recite the words of the British national anthem in a press conference.

[21] Then in August, she ran 12.80 to win a silver medal in the 100 m hurdles at the Commonwealth Games in Glasgow, behind Sally Pearson of Australia.

[23] In September 2014, at the IAAF Continental Cup, she broke the UK record with a time of 12.51 secs, finishing behind Dawn Harper-Nelson of the US.

[23] Porter won bronze at the 2016 IAAF World Indoor Championships in Portland, Oregon[24] and was seveneth at the 2016 Summer Olympics in Rio de Janeiro.