The fourth meeting of the Subregional Committee for the Western Mediterranean (SRC-WM) of the General Fisheries Commission for the Mediterranean (GFCM) was held online on 1719 February 2021. The aims of the SRC-WM were to: i) provide advice on blackspot seabream (Pagellus bogaraveo) in line with the adopted recommendations; ii) compile relevant information on the status of other western Mediterranean fisheries and provide advice to the GFCM Scientific Advisory Committee on Fisheries (SAC), including on urgent actions towards sustainability and following the requests made by the Commission; iii) identify priority topics for the subregion, including in relation to data collection, the provision of advice and the implementation of management measures; and iv) prepare a draft work plan to address subregional priority issues for the consideration of the SAC. The SRC-WM formulated draft advice on the status of the western Mediterranean stocks, the technical elements for the management of blackspot seabream in the Strait of Gibraltar, the implementation of a draft plan of action on common dolphinfish (Coryphaena hippurus), the identification of conservation priority areas hosting essential fish habitat and/or vulnerable marine ecosystem, the implementation of a vulnerability assessment of Mediterranean fisheries to climate change, and the implementation of a data call to feed the GFCM Database on Sensitive Benthic Habitats and Species. It also forwarded to the consideration of the SAC a proposal for the establishment of a fisheries restricted area located in the Ebro Delta area, within the Spanish exclusive economic zone. Finally, it proposed a work plan for the 2021–2022 intersession.