Louwrens is a surname and a given name. Notable people with the name include:
Surname: Lo-handre Louwrens (born 1999), Namibian cricketer Michael Louwrens, paralympic athlete from South Africa Ryan Louwrens (born 1991), South African Australian rugby union player
Given name: Frans Johan Louwrens Ghijsels (1882–1947), Dutch architect and urban planner Louwrens Hanedoes (1822–1905), Dutch landscape painter Benjamin Louwrens Osler (1901–1962), rugby union footballer Louwrens Penning (1854–1927), Dutch novelist Louwrens Voorthuijzen (1898–1968), aka Lou de Palingboer, founder of a religious movement in the Netherlands