Skaraborg County (Swedish: Skaraborgs län [ˈskɑ̂ːraˌbɔrjs ˈlɛːn]) was a county of Sweden from 1634 until 1997. It was disestablished at the end of 1997 when it was merged with the counties of Gothenburg and Bohus and Älvsborg to form Västra Götaland County. The county was named after a fortress (borg) outside the city of Skara. The seat of residence for the county governor was Mariestad from 1660 onwards and the largest city (during the 20th century) was first Lidköping and later Skövde. The county consisted of the northeastern part of the province of Västergötland.