Charles Howland Hammatt Billings (1818–1874) was an artist and architect from Boston, Massachusetts.

Among his works are the original illustrations for Uncle Tom's Cabin (both the initial printing ^[1] and an expanded 1853 edition), ^[2] the National Monument to the Forefathers, the Civil War monument in Concord, Mass., and the 19th-century granite canopy (since replaced) for the Plymouth Rock memorial. He worked for some years with his brother Joseph Edward Billings, also an architect.

He was the artist of one of the well-noted portrayals of the Battle of Lexington.

• Wesleyan Building, Boston (Bromfield Street), 1870
• College Hall, the original structure at Wellesley College, 1871–1875, destroyed by fire in 1914
• Tremont Street Methodist Episcopal Church
• Boston Museum (theatre)
• National Monument to the Forefathers

• Liberator masthead, designed by Billings, 1850
• Illustration from Uncle Tom's Cabin, 1853
• 1853 advertisement for "Hammatt Billings, designer and architect"
• Plymouth Rock canopy, 1867 (replaced in 1920)