Daniel Leonard Keczmer (born May 25, 1968) is an American former professional ice hockey player who played in the National Hockey League (NHL). He was drafted in the tenth round, 201st overall, by the Minnesota North Stars in the 1986 NHL Entry Draft.

Keczmer played four seasons with Lake Superior State University and was a member of the Lake Superior State Lakers 1988 NCAA Championship men's ice hockey team. Keczmer made his professional debut with the IHL's Kalamazoo Wings in the 1990-91 season. He also appeared in nine NHL games with the North Stars that same season.

Keczmer was one of many North Stars who joined the San Jose Sharks in the 1991 NHL Dispersal Draft. Before the Sharks' inaugural season began, however, Keczmer was traded to the Hartford Whalers in exchange for Dean Evason. Keczmer would play with the Whalers, Calgary Flames, Dallas Stars, and Nashville Predators before retiring following the 1999-2000 season.

In his NHL career, Keczmer appeared in 235 games. He scored eight goals and added 38 assists. He also appeared in 12 Stanley Cup playoff games, recording one assist.

He now resides in Brentwood, TN with his family.