Roger Petersen is a Canadian television news reporter.
He served as anchor on CityNews (formerly CityPulse) and Breakfast Television on CityTV Toronto from 1999 until 2004, when he moved to CityTV Vancouver and became that station's lead male anchor with co-anchor Julie Nolin. He remained in that position until the cancellation of that newscast on July 12, 2006. Then he went back to Toronto, this time reporting and anchoring for CTV Toronto. In October 2008, he returned to Citytv Toronto as weekend anchor alongside Farah Nasser.
On January 19, 2010 Rogers & CityTV laid off many staff and cancelled some of the newscasts including the weekend newscasts. Petersen is now the anchor of CityNews Tonight, weeknights at 11pm. His appointment was named a few months after the death of 11pm anchor Mark Dailey.
Petersen is a graduate of Seneca College.