Do I need a passport to travel between Ireland and France?

Irish citizens travelling between France and Ireland must hold a valid passport.

For French citizens wishing to travel to Ireland, a valid national identity card or passport is necessary. The passport or identification card should be valid for the duration of the stay. An identity card is permissible for a stay of less than 90 days. For longer periods, a valid passport is necessary.

Only valid identification cards and passports are accepted.