The Curtis Arboretum is a 45-acre (18 ha) arboretum in Wyncote, Pennsylvania. The arboretum was founded by Mary Louise Curtis Bok in honor of her father, Cyrus Curtis.

The landscaping was designed by Frederick Law Olmsted. The arboretum is listed on the National Register of Historic Places.

The arboretum surrounds Curtis Hall, once the ballroom of the Curtis family mansion, which now is operated by the Cheltenham Township Parks and Recreation Department. The arboretum features hills, two ponds, a dog park, a small World War II memorial, and over 50 types of trees.

Curtis Arboretum serves as the home course for the Cheltenham High School men's and women's cross country running teams.

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  A colonnade or pergola remaining from the Curtis mansion
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  Curtis Hall from the rear
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  Ironwork with an oak leaf motif at the entrance gate
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  The Curtis Arboretum Valley of Remembrance

• List of botanical gardens in the United States

• Friends of Curtis Arboretum
• Historic American Buildings Survey (HABS) No. PA-6057, "Curtis Hall, 8230 Old York Road, Elkins Park, Montgomery County, PA", 4 photos, 4 data pages, 1 photo caption page
• HABS No. PA-6057-A, "Curtis Hall, Dependency", 2 photos, 1 photo caption page
• Historic American Landscapes Survey (HALS) No. PA-29, "Curtis Arboretum, 1250 Church Road, Wyncote, Montgomery County, PA", 2 measured drawings, 24 data pages