The Philadelphia Phillies won the World Series in 1980 but, they were not the only team to win twice, and they did not win their second World Series title until 2008.
Dodgers. '81 & '88.
No team won the World Series more than once in the 1980s. There were 10 different winners.
The LA Dodgers (1981 and 1988).
The Phillies defeated the Kansas City Royals, 4 games to 2, to win the 1980 World Series.
The LA Dodgers won two World Series titles in the 1980's. 1981, and 1988.
As of Baseball reference the LA Dodgers won 2 WS in the 80's
The Los Angeles Dodgers who defeated the New York Yankees in 1981 and the Oakland Athletics in 1988.
The Philadelphia Phillies won two world Series titles, 1980, and 2008.
The Phillies baseball team did win the World Series in 2008. They beat the Tampa Bay Rays 4 games to 1 and it was their first World Series win since 1980.
The St. Louis Cardinals, who played in the 1982, 1985 and 1987 World Series.