Merrem may refer to:

Meropenem, an antibiotic initially marketed under the trade name Merrem
Blasius Merrem (1761–1824), German naturalist, zoologist, ornithologist, mathematician, and herpetologist
Cystitis cystica is a similar lesion to cystitis glandularis, where the central area of the Von Brunns nests have degenerated, leaving cystic lesions. Other metaplastic entities in the urinary bladder include squamous metaplasia and nephrogenic adenoma. References


== Further reading ==