The Town of Larkspur is a Home Rule Municipality in Douglas County, Colorado, United States. The population was 234 at the 2000 census. Each year on weekends in June and July, the Colorado Renaissance Festival is held in the hills just west of the town. The town is served by Larkspur Elementary School, a K-6 school in the Douglas County school district.
Larkspur is located at 39°13′38″N 104°53′03″W / 39.227091°N 104.884233°W / 39.227091; -104.884233.
According to the United States Census Bureau, the town has a total area of 1.4 square miles (3.5 km²), all land.