Topanga is a census-designated place in western Los Angeles County, California. Located in the Santa Monica Mountains, the community exists in Topanga Canyon and the surrounding hills. The narrow southern portion of Topanga at the coast is between the city of Malibu and the Los Angeles neighborhood of Pacific Palisades. As of the 2020 census the population of the Topanga CDP was 8,560.

Will Geer Theatricum Botanicum is a Non-Profit, Outdoor Theatre and Academy of the Classics in Topanga, California. The mission is to elevate, educate and entertain audiences of all ages by presenting thought-provoking classics, socially relevant plays, and education programs in a beautiful, natural outdoor sanctuary for the arts.