|Location||7020 E 12th Ave, Montclair, Denver, Colorado|
|Architect||Alexander Cazin;Maurice Biscoe;Henry Hewitt;Jacques Benedict|
|Architectural style||Gothic Revival, Tudor Revival|
|NRHP reference #||75000511|
|Added to NRHP||April 21, 1975|
Richthofen Castle is a historic 35-room mansion in the neighborhood of Montclair in the City and County of Denver, Colorado, United States. Completed in 1887, it was originally designed by Alexander Cazin for Baron Walter von Richthofen, a German immigrant and member of the prominent Richthofen aristocratic family. Additions and remodels on the house were later made by Maurice Biscoe and Henry Hewitt in 1910 and Jules Jaques Benedict in 1924. The mansion was listed on the National Register of Historic Places in 1975.
- "Richthofen Castle, 'haunted' Denver home of the 'Red Baron's' uncle, selling for $3.75million". Mail Online. Retrieved 2017-04-10.
- "ICAA- RMC - April - Richthofen Castle". Institute of Classical Architecture & Art Rocky Mountain Chapter. Retrieved 2017-04-11.
- "Richthofen Castle". National Register summary listing. National Park Service. Retrieved April 10, 2017.