Here is a list of some: http://www.restaurants.co.uk/htmlpages/South_Glamorgan/Cardiff/French.htm
Sorry, I cant advise on which ones are good but there are reviews of the above restaurants here: http://www.restaurants.co.uk/search-uk-restaurants/search.php?search1=&search2=cardiff&search3=&search4=&search5=French&imageField.x=274&imageField.y=8
ⓘ
This content was originally posted on Y! Answers, a Q&A website that shut down in 2021.