YCF may refer to:
Yacimientos Carboníferos Fiscales, known by its acronym YCF, a defunct state-owned company in Argentina Cortes Island Aerodrome, Canada (by IATA code) Young Calvinist Federation, a youth ministry in Canada and the United States Ycf4, Ycf9, and Ycf14, protein names standing for hypothetical chloroplast open reading frame YCF1, a yeast cadmium factor protein A US Navy hull classification symbol: Car float (YCF)