French nationals (and their spouses--married, civil union or cohabitants--and their children) can enter France even if they are not vaccinated, provided that they present a negative Covid-19 test (less than 72 hours old if it is a PCR test or less than 48 hours old for an antigen test). They are also encouraged to commit to a seven-day voluntary home quarantine.Non-citizens who have not been vaccinated cannot enter France, unless they are: a European citizen residing in France or in the EU, or a holder of a French or European residence permit or long-stay visa (complete list here).