Harald Gill Johnsen (19 March 1970 – 24 July 2011) was a Norwegian jazz double bassist, known for his contributions in bands like Køhn/Johansen Sextet and Tord Gustavsen Trio, and a series of recordings with such as Sonny Simmons, Sigurd Køhn, Nils-Olav Johansen, Jan Erik Kongshaug, Frode Barth, Per Oddvar Johansen and Ditlef Eckhoff.
Johnsen was a graduate of the Jazz program at Trondheim Musikkonservatorium (NTNU, 1989–92). He participated in the "two basses event" with the Trygve Seim... plus