Metellus Celer was married to his cousin Clodia Quadrantaria, often referred to in scholarship as Clodia Metelli ("Clodia the wife of Metellus"), the daughter of Appius Claudius Pulcher.
Metellus Celer menikahi sepupunya Clodia Quadrantaria, sering disinggung dalam beasiswa sebagai Clodia Metelli ("Clodia istri Metellus"), putri Appius Claudius Pulcher.