Ringsted County () was a Danish county on central Zealand. The largest town was Ringsted.
Ringsted County was created in 1662 as a replacement of the old Ringsted Fief (Ringsted Len). The county consisted of a single hundred (). Beginning in 1748, Ringsted County was administrated together with Sorø County. At the 1793 Danish County Reform, with effect from 1798, Ringsted County, Korsør County, and Antvorskov County were merged into Sorø County.
The governors of Ringsted County (Danish: Amtmænd, singular Amtmand) from 1653 until its dissolution in 1798, were: