Vesica (: vesicae) is Latin for "bladder", may refer to:
Anatomy Vesica, mainly used for the urinary bladder Vesica, also used for the gallbladder Vesica, in entomology used for a part of the male genitals Trigonum vesicae urinariae, Latin for trigone of urinary bladder
Shapes Vesica piscis, a shape formed by the intersection of two circles of the same radius