Captain Richard Gustav Borgelin (10 February 1887, Herning, Denmark – 8 December 1966, Copenhagen, Denmark) was a Danish officer and company commander of the Danish-Baltic Auxiliary Corps (DBAC) in 1919 during the Estonian and Latvian War of Independence. Borgelin and seven other Danes were awarded the Latvian military Order of Lāčplēsis of third class. In gratitude for his services to the Estonian state, Borgelin was granted Maidla manor in Estonia.