Bela beatriceae (formerly Brachycythara beatriceae) is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.
The length of the shell attains 7 mm.
It was described in 2007 by Paolo Mariottini based on shell morphology. It is distinguished from the closely related Brachycythara atlantidea by differences in shell shape, sculpture, and protoconch characteristics.
This species occurs in the Alboran Sea, part of the Mediterranean Sea and in tropical West Africa waters off the coast off Western Sahara, where it inhabits muddy bottoms.