Weld Boathouse is a Harvard University-owned building on the bank of the Charles River in Cambridge, Massachusetts.

The current structure was designed by Peabody and Stearns and is named for George Walker Weld, who donated the funds for its construction.

The second, current structure was built in 1906–1907 to a design by Peabody and Stearns with funds that Weld bequeathed for that purpose.

Harvard men's rowing uses Newell Boathouse on the Boston side of the river.

This bridge was designed with "a high enough arch to admit the passage of all sorts of pleasure craft."