Yu Dan may refer to:

• Yu Dan (academic) (born 1965), Chinese academic
• Yu Dan (sport shooter) (born 1987), Chinese sports shooter

• Boston Pilgrims
• Boston Police Department
• Boston Police Special Operations Unit
• Boston Police Strike
• Boston Pops
• Boston Pops Orchestra
• Boston Port Act
• Boston & Portland Railroad
• Boston Post Road
• Boston Properties
• Boston Proposal
• Boston & Providence Railroad
• Boston Public
• Boston Public Library
• Boston Reds (1890–91)
• Boston Redskins
• Boston Red Socks
• Boston red sox
• Boston Red Sox
• Boston Red Sox all-time roster
• Boston Red Sox: Award Winners and League Leaders
• Boston Red Sox Hall of Fame
• Boston Red Sox managers
• Boston Red Stockings
• Boston Reds (Union Association)