Dagfinn Henrik Olsen (born 29 June 1966) is a Norwegian politician for the Progress Party.
He served as a deputy representative to the Parliament of Norway from Nordland during the terms 1997–2001, 2013–2017 and 2017–2021.
When regular representative Kjell-Børge Freiberg became a cabinet member in August 2018, Olsen took his place as a regular.
He assumed a seat in the Standing Committee on Transport and Communications.
Hailing from Lødingen, he had been elected on local and regional level.