The 1948 Stanley Cup Finals was a best-of-seven series between the Detroit Red Wings and the defending champion Toronto Maple Leafs. The Maple Leafs swept the Red Wings to win their second consecutive Stanley Cup and seventh overall.

Detroit defeated the New York Rangers 4–2 to advance to the Finals. Toronto defeated the Boston Bruins 4–1 to advance to the Finals.

This was the Stanley Cup debut series for Detroit's Gordie Howe, and the last for Toronto's Syl Apps who retired after the series.

The 1948 Stanley Cup was presented to Maple Leafs captain Syl Apps by NHL President Clarence Campbell following the Maple Leafs 7–2 win over the Red Wings in game four.

The following Maple Leafs players and staff had their names engraved on the Stanley Cup

1947–48 Toronto Maple Leafs

When the Stanley Cup was redone in 1957–58, Robert J. Galloway's name was engraved as P.J. GALLOWAY. The "P" should be a "R". This mistake was repeated on the Replica Cup created in 1992–93.

• The Stanley Cup was getting too big it was reduced in size to a height 34 1/4 inches and 35 1/2 pounds. All the large rings were fit together so that 2 rings became 1 ring. The Stanley Cup was wider in size but smaller in height. The Stanley Cup had black spaces to include the winning team up to 1956.
• 1947 Toronto Maple Leafs winning members were finally added to the Stanley Cup in 1948.

• 1947–48 NHL season

• Diamond, Dan (2000). Total Stanley Cup. Toronto: Total Sports Canada. ISBN 978-1-892129-07-9.
• Podnieks, Andrew; Hockey Hall of Fame (2004). Lord Stanley's Cup. Bolton, Ont.: Fenn Pub. pp 12, 50. ISBN 978-1-55168-261-7
• "All-Time NHL Results".