Casa de Stewart, also called La Casa de Machado y Stewart, is a historical adobe building in San Diego, California, built in 1835. The Casa de Stewart site is a California Historical Landmark No. 73, listed on December 6, 1932.

Casa de Stewart was built by José Manuel Machado, a leatherjacket company soldier of the New Spain Army, stationed in San Diego. Machado built the house for his daughter Rosa. Rosa married Jack Stewart, a pilot boat operator from Maine. The Stewarts eventually enlarged the house. Carmen Stewart Meza lived in the house for 50 years; she moved out after a 1966 flood. Casa de Stewart was acquired by California State Parks, who had it restored to a museum, Casa de Machado y Stewart Museum. The house's current address, is 2707 Congress street, at Congress and Mason Streets, in Old Town, San Diego. Casa de Machado y Silvas, built in 1832, is also a California Historical Landmark.

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  La Casa de Machado y Stewart in Old San Diego in 182, adobe with a new whitewash coat
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  Casa de Machado y Stewart Museum
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  Casa de Machado y Stewart Museum
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  Casa de Machado y Stewart Museum

• California Historical Landmarks in San Diego County
• Adobe Chapel of The Immaculate Conception
• Casa de Carrillo House
• Casa de Estudillo
• Casa de Cota
• Mission San Diego de Alcalá
• Presidio of San Diego