GnuCOBOL
GNU Cobol (formerly OpenCOBOL) is an open-source COBOL compiler, translating COBOL into C and allowing COBOL code to access many C Libraries. Initially created by Keisuke Nishida, the lead developer is now Roger While.
GnuCOBOL is an implementation of COBOL.
Other implementations of COBOL.
GNU Cobol was renamed as part of becoming of a GNU project.