General Lage Gustaf Harald Thunberg (22 March 1905 – 28 September 1997) was a Swedish Air Force officer.

[1] Thunberg was commissioned as an officer with the rank of second lieutenant and assigned to Kalmar Regiment (I 21) in 1927 and was transferred to the Swedish Air Force in 1933.

He was promoted to captain in 1937 and was head of the Royal Swedish Air Force College (Flygvapnets kadettskola) from 1939 to 1943.

Thunberg was commanding officer of the Bråvalla Wing (F 13) from 1944 to 1947 (acting in 1943) and was promoted to colonel in the Swedish Air Force the same year.

Thunberg was promoted to lieutenant general in 1961 and was appointed Chief of the Air Force.