The AGCFF U-23 Gulf Cup (), formerly known as the GCC U-23 Championship, is a regional football competition governed by the Arab Gulf Cup Football Federation (AGCFF). The tournament was founded by the Gulf Cooperation Council (GCC) and was first organised in 2008 as a round-robin tournament of five nations. The last edition organised by the GCC was in 2016.
The tournament was relaunched by the AGCFF in 2025 under the name AGCFF U-23 Gulf Cup, featuring eight teams.
' A round-robin tournament determined the final standings.