H
- John S. Hagmann
- Charles C. Haight
- Lawrence Halprin
- Alfred Dwight Foster Hamlin
- Samuel Hannaford
- Alan Hantman
- Henry Janeway Hardenbergh
- John C. Harkness
- Sarah P. Harkness
- Harwell Hamilton Harris
- Ralph C. Harris
- Peter Harrison
- Wallace Harrison
- John A. Hasecoster
- Thomas Hastings
- Ralph Haver
- John Haviland
- William S. Hebbard
- John Hejduk
- Helfensteller, Hirsch & Watson, founded 1903.
- Hellmuth, Obata and Kassabaum
- David Heymann
- James Hoban
- Chuck Hoberman
- F. Burrall Hoffman
- John Augur Holabird
- William Holabird
- Steven Holl
- Henry K. Holsman
- Raymond Hood
- Henry Hornbostel
- John Galen Howard
- Howells & Stokes
- John Mead Howells
- Charles Evans Hughes, III
- Robert Hugman
- Richard Morris Hunt
- Sumner Hunt
Read more about this topic: List Of United States Architects