33 Arch Street is a contemporary highrise in the Financial District and Downtown Crossing neighborhoods of Boston, Massachusetts.

The builders had proposed a transparent glass building but ran into opposition from the historic Old South Meeting House.

[7] In March 2010, 33 Arch Street was awarded the LEED Gold designation from the U.S. Green Building Council.

[2] The building facade features grey granite, glass and aluminum cladding.

[10] Twenty floors cantilever over adjacent retail space[2] and a garage, which is connected to parking on the first six levels.