Ramus can refer to:
* A
branch (botany)
* A portion of a bone (from Latin ''ramus'', "branch"), as in the
Ramus of the mandible or
Superior pubic ramus
* A nerve ramus such as the
Dorsal ramus of spinal nerve
* A
taxonomic rank ("branch" in English) intermediate between subkingdom and infrakingdom
*
Webster, Illinois, a settlement initially known as "Ramus"
People:
*
Edmond Ramus (1822–1890), French engraver best known for his copies of paintings for art catalogues
*
Petrus Ramus (1515–1572), influential French humanist, logician, and educational reformer
*
Tetyana Ramus (born 1980) Ukrainian artist, designer, TV and radio journalist, public activist, producer, publisher, author of television projects
{{Disambig, surname