thumb|[[Daniel Alfredsson, the longest-tenured captain in Senators history]]
The Ottawa Senators are a professional ice hockey team based in Ottawa, Ontario, Canada. They are members of the Atlantic Division in the Eastern Conference of the National Hockey League (NHL). The Senators joined the NHL in 1992 as an expansion franchise. As of the conclusion of the 2025–26 season, a total of 475 players have suited up for the Senators: 50 goaltenders and 425 skaters.
Only four players in franchise history have won major individual NHL awards: Daniel Alfredsson, Bobby Ryan, Craig Anderson and Erik Karlsson. Alfredsson won the Calder Memorial Trophy in 1996, the King Clancy Memorial Trophy in 2012, and the Mark Messier Leadership Award in 2013. Ryan earned the Bill Masterton Trophy in 2020, while Anderson received the same honour in 2017. Karlsson was awarded the James Norris Memorial Trophy as the league's top defenceman in both 2012 and 2015.
Alfredsson served as team captain from 1999 to 2013 and remains the Senators’ all-time leader in goals, assists and points during both the regular season and playoffs. He also holds the franchise record for most playoff games played. Chris Phillips is the Senators’ all-time leader in regular season games played, with 1,179 appearances, just ahead of Alfredsson’s 1,178.