Mae Cyngor Caerdydd wedi ymrwymo i weithio mewn partneriaeth ag undebau llafur. Mae undebau llafur cydnabyddedig y Cyngor fel a ganlyn:
http://www.aep.org.uk/
http://www.ascl.org.uk/
http://www.askatl.org.uk/
BECTU - Broadcasting Entertainment Cinematograph & Theatre Union
http://www.bectu.org.uk/
http://www.gmb.org.uk/
http://www.naht.org.uk/
http://www.nasuwt.org.uk/
http://www.athrawon.com/
UCU (NATFHE) - University & College
http://www.ucu.org.uk/
http://www.unison.org.uk/
http://www.unitetheunion.org/
http://www.voicetheunion.org.uk/