Kenneth Williamson FRSE MBOU (c. 1914 – 14 June 1977)[1] was a British ornithologist who had a strong association with Scotland and with bird migration.

[3] He was employed as a Museum Assistant for Natural History from 1946 until April 1949 when he left to become the Director of the Fair Isle Bird Observatory.

[4] He remained in the role of director until 1957 when he left to be the inaugural Migration Research Officer for the British Trust for Ornithology.

His proposers were George Waterston, Vero Wynne-Edwards, John Berry and James Ritchie.

As well as numerous ornithological papers, books authored or co-authored by Williamson include: This article about a British ornithologist is a stub.