Lauritz Bernhard Sirevaag (15 March 1926, Stavanger – 2016) was a Norwegian politician for the Conservative Party.
On the local level he was a member of Sandnes city council from 1963 to 1971, serving as mayor from 1967 to 1969.
He was elected to the Norwegian Parliament from Rogaland in 1969, and was re-elected on one occasion.
From 1991 to 1999 he was a member of Rogaland county council.Sirevaag worked for many years as a banker.