The Theodore W. Richards House is a National Historic Landmark at 15 Follen Street in Cambridge, Massachusetts.

Built in 1900, it was the home until his death of Theodore William Richards (1868–1928), the first American to be awarded the Nobel Prize in Chemistry.

[2] Theodore Richards was born in Germantown, Pennsylvania in 1868, educated at home, and then at Haverford College and Harvard University, where he received his PhD in chemistry in 1888.

From an early time he was interested in the question of atomic weights, a subject that he would study for most of his professional career.

He successfully recalculated the atomic weights of a number of chemical elements, developing methodology and apparatus along the way.