The 2025-2027 Action Plan of the World Data System continues the work that was started in the 2022-2024 Action Plan. The WDS Scientific Committee developed the following objectives to drive the organization's processes and goals in the coming years. Provide services and support to member repositories Advance the value narratives of WDS members Demonstrate global leadership in data governance Advocate for quality, trustworthiness, equitability, and FAIRness of data and data repositories worldwide World Data System International Program Office (WDS-IPO) is hosted by the University of Tennessee at the University of Tennessee Oak Ridge Innovation Institute. This work is supported by a cooperative agreement (DE-SC0021915) with the U.S. Department of Energy Office of Science. Contact WDS-IPO at wds-ipo@utk.edu.World Data System International Technology Office (WDS-ITO) is hosted by the University of Victoria. This work is supported by the Digital Research Alliance of Canada and Ocean Networks Canada. Contact WDS-ITO at ito-webadmin@oceannetworks.ca.