Keesing is a surname. Notable people with the surname include:
Felix M. Keesing (1902–1961), anthropologist Henry Keesing (1791–1879), New Zealand shopkeeper and financier, also known as Hartog ben Tobias Keesing, Hartog Zwi Tobias Keesing, and Hartog Tobias Keesing Isaac Keesing (1886–1966), Dutch publisher of Keesing's Record of World Events (published 1931–2016, previously known as Keesing's Contemporary Archives) Nancy Keesing (1923–1993), Australian writer and editor Roger Keesing (1935–1993), anthropologist, son of Felix Keesing