Wynnewood, Pennsylvania is a suburban unincorporated community, west of Philadelphia that straddles Lower Merion Township, Montgomery County and Haverford Township, Delaware County, Pennsylvania, United States. It was named in 1691 for Dr. Thomas Wynne, William Penn's physician and the first Speaker of the Pennsylvania General Assembly. Also located in the community is Shortridge Memorial Park, a small park in a creek valley with stone bridges under which Indian Creek flows. Recently, the Indian Creek district has been ecologically revitalized and restored. Wynnewood residents are also active in the Wynnewood Civic Association and the Shortridge Association of Wynnewood. Wynnewood is only 15 minutes from downtown Philadelphia. The climate in Wynnewood produces warm summers and cold winters with moderate rainfall all year long.