Errashidia (Arabic: الرشيدية, romanized: ar-Rashidiyyah), formerly known as Ksar es-Souk, (Arabic: قصر السوق, romanized: Qaṣr as-Sūq) is a city in Morocco, located in the Errachidia Province, and is the capital of the Drâa-Tafilalet region.

Formerly known as "Ksar es-Souk" (Arabic: قصر السوق, romanized: Qaṣr as-Sūq), the city was renamed Errachidia around 1975 in honor of the second son of Hassan II, Moulay Rachid.

The city was part of the route of the 2006 and 2007 Dakar Rally.

The highest temperature ever registered in Errachidia was 43.9 °C (111.0 °F), on July 17, 2021.

This Drâa-Tafilalet location article is a stub.