St Anne's Cathedral or St. Ann's Cathedral may refer to:

Brazil St. Ann Cathedral, Caicó, Rio Grande do Norte St. Ann Cathedral, Feira de Santana, Bahia St. Ann Cathedral, Mogi das Cruzes, São Paulo St. Ann Cathedral, Ponta Grossa, Paraná St. Ann Cathedral, Uruguaiana, Rio Grande do Sul

Ivory Coast St. Ann Cathedral, Gagnoa

United Kingdom St Anne's Cathedral, Leeds St Anne's Cathedral, Belfast

United States St. Ann's Cathedral (Great Falls, Montana) St. Ann's Armenian Catholic Cathedral, New York, New York

See also Church of St. Ann