Alberta Maria Wilhelmina "Bep" Mennega (29 July 1912 – 20 December 2009) was a Dutch botanist renowned for her studies into the anatomy of wood and plant systematics.

[1] Mennega studied biology at the Utrecht University, earning her Ph.D in 1938.

[3] While working at the university, she started a world renowned wood collection.

In 1988, she founded the Alberta Mennega Foundation as a scholarship for students and researchers in the field of botany, prioritizing the funding of fieldwork in the tropics.

[4] The genus Mennegoxylon and the species Salacia mennegana were named in her honor.