Pehr Gustaf Viktor Gyllenhammar (23 April 1901 – 22 November 1988) was a Swedish insurance company executive.

He completed a law degree from Stockholm University in 1925, and became CEO of the insurance company Svenska Skeppshypotekskassan (the Swedish Ships' Mortgage Bank) in 1938.

He was later CEO of the Swedish insurance company Skandia until 1970, when he was succeeded by his son, Pehr G. Gyllenhammar.

[1] He passed studentexamen in Gothenburg in 1920 and earned a Candidate of Law degree from Stockholm University College on 25 April 1925.

[1] Gyllenhammar was employed by the insurance company Svenska Skeppshypotekskassan (Swedish Ships' Mortgage Bank) from 1929 as an ombudsman and at the law firm Dr Philip Lemans Advokatbyrå in Gothenburg as an assistant lawyer from 1934 to 1940.