Loubser is a surname mainly found in South Africa. Notable people with this name include:
Andell Loubser (born 1997), South African rugby union player Bob Loubser (1884–1962), South African rugby union player Cliven Loubser (born 1997), Namibian rugby union player Cornell Loubser (born 1994), deaf South African female swimmer Michael Loubser (born 1990), South African cricketer Sunette Loubser (born 1982), South African female cricketer