Career
He formerly played for Arystan Temirtau in Kazakhstan He played 22 games in the National Hockey League with the Ottawa Senators. Dahlman began playing hockey in the first division Kiekko-Kissat in the 1996-1997 season, and moved on to the Jokerit junior team, and eventually to Jokerit for the 1998-1999 season. He was drafted by the Ottawa Senators of the National Hockey League as their 9th round pick in the 2001 National Hockey League Entry Draft, 286th overall.
Dahlman played two seasons in North America firstly in 2001-2002 with the Grand Rapids Griffins of the American Hockey League and ten games with the Ottawa Senators.
In the 2002-2003 season, Dahlman played briefly for Ottawa before returning to the AHL with affiliate, the Binghamton Senators. Over his 22 National Hockey League games Dahlman only scored one goal and assistant
Dahlman returned to Finland for the 2003-2004 season and represented Ilves in a total of 41 games, scoring 9 goals and 18 assists. He returned to Jokerit for the 2004-2005 season, where he scored 16 goals and 7 assists, sharing the top goal scorer spot on his team with Glen Metropolit and Marko Jantunen.
On April 20, 2011, Dahlman left the Grizzly Adams after a finals appearance in the Deutsche Eishockey Liga, and returned to Austria on a one-year contract to play with Graz.
After a two year stint in Kazakhstan with Arystan Temirtau and a one year stint with the VHL"s Sputnik Nizhny Tagil, he signed with Ciarko Public Broadcasting Service Bank STS Sanok in Poland for the 2015-2016 season. He played in six games and scored two goals.