Lourens may refer to:
- Given name
- Lourens Adriaanse, South African rugby player
- Lourens Erasmus, South African rugby player
- Lourens van der Merwe, South African rugby referee
- Lourens Muller, South African politician and cabinet minister
- Lourens Baas Becking, Dutch botanist and microbiologist
- Lourens Alma Tadema, birth name of Dutch/British painter Lawrence Alma-Tadema
- Surname
- Alan Lourens, Australian classical musician, composer, euphonium player and conductor
- Fajah Lourens, Dutch actress, model and disc jockey
- Werner Lourens, South African rugby union player
- Thys Lourens, South African rugby player
- Virginia Lourens, Dutch taekwondo practitioner
- Junita Kloppers-Lourens, South African politician
- Others
- Lourens River Protected Natural Environment, a section of protected land along the Lourens River in Cape Town, South Africa