FMCS

FMCS may refer to:
 * Framwellgate School Durham, formerly known as the Framwellgate Moor Comprehensive School
 * Federal Mediation and Conciliation Service (Canada)
 * Federal Mediation and Conciliation Service (United States)
 * Formula Masters China
 * Fourze Module Change Series, a toy line of Astroswitch Modules used in Kamen Rider Fourze
 * Foreign Military Construction Sales