Xavier

- Francis Xavier (1506-1552), Spanish Roman Catholic saint and co-founder of the Jesuit Order
- Xavier Martinez (1869-1943), American artist of Mexican descent
- Xavier Mertz (1883-1913), Swiss explorer
- Xavier, Duke of Parma (1889-1977), of Spain
- Xavier Zubiri (1889-1983), Spanish philospher
- Xavier Cugat (1900-1990), Catalan-Cuban bandleader
- Chico Xavier (1910-2002), Brazilian medium
- Xavier Becerra, American politician
- Xavier Malisse, Belgian professional tennis player
- Xavier McDaniel, American professional basketball player
- Xavier Naidoo, German singer/songwriter
- Xavier Nady, American professional baseball player
- Xavier Rudd, Australian musician
- Abel Xavier, professional footballer
- Professor X, fictional Marvel Comics character, also known as Charles Xavier

Educational institutions:
- St. Francis Xavier School, Vancouver, elementary school in British Columbia
- St. Xavier High School (disambiguation)
- St Francis Xavier College (disambiguation)
- Xavier University (disambiguation)
- Xavier Institute (disambiguation)