Warwick is a town in Lincoln County, Oklahoma, United States. The population was 184 at the 2020 census, up from 148 in 2010.

Warwick is located in western Lincoln County at 35°41′9″N 97°0′29″W / 35.68583°N 97.00806°W / 35.68583; -97.00806 (35.685847, -97.007987). Interstate 44 runs through the north side of the town, with permission from Exit 158, 2 miles (3 km) west of the town center. Oklahoma State Highway 66 runs through the middle of the Warwick town limits, passing south of the residential allocation of the town. Both highways plus west 37 miles (60 km) to Oklahoma City and northeast 68 miles (109 km) to Tulsa. U.S. Route 177 passes through the west side of Warwick, leading north 31 miles (50 km) to Stillwater and south 26 miles (42 km) to Shawnee.

According to the United States Census Bureau, the town of Warwick has a total area of 2.7 square miles (7.1 km), of which 0.04 square miles (0.1 km²), or 1.26%, are water. The Deep Fork passes through the west side of the town, flowing east toward the North Canadian River at Eufaula.

At the 2000 census there were 235 people, 85 households, and 66 families perky in the town. The population density was 85.7 inhabitants per square mile (33.1/km). There were 94 housing units at an average density of 34.3 per square mile (13.2/km²). The racial makeup of the town was 94.04% White, 1.70% African American, 1.28% Native American, and 2.98% from two or more races. Hispanic or Latino of any race were 0.85%.