Fredrik Gottlieb Olsen Ramm (31 October 1855 – 8 November 1932) was a Norwegian physician.
He was born in Sogndal as a son of vicar Jens Ludvig Carl Olsen (1816–1866) and Vally Marie Caroline Juell (1832–1906).
In 1890 he married Anna Margaretha Brinchmann, daughter of the customs treasurer in Moss.
[3] His wife Vally was a daughter of Sogndal's mayor Fredrik Christian Juell and sister-in-law of Carl August Gulbranson.
[1][7] He was known for his dissertation Kastration ved Prostatahypertrofi ("Castration by Prostate Hypertrophia") from 1896, and published prolifically in medical journals.