There is no particular name given to the French flag in French.
It is usually called "le drapeau français" (The French flag) or le "drapeau tricolore" (The three colored flag).
On a boat it is usually "le Pavillon français". Pavillon is a generic name given to the flag on boats or when the flag is half-masted.
to fly the flag of ... = naviguer sous pavillon ....
flag of convenience = Pavillon de complaisance
to half-mast the flags - mettre les drapeaux (or les pavillons) en berne.
One of the names for the French flag as referred to in France is the Tricolour pronounced tree-cooloor.
Tricolore
Tricouleur
The French flag is called 'le drapeau français'
The Tricolour (le tricolore)
The flag is "le drapeau" (masc.) in French. The French flag is "le drapeau français".
Flag is translated 'drapeau' (masc.) in French.
flag = drapeau
The Tricouleur (note spelling) is the name of the French flag. In the same sense that the US flag is the "star spangled banner" and the flag of the UK is the "Union Jack".
because that's the name of their leader
The Italian flag is green, white, red The French flag is blue, white, red
the french tricolored flag and the symbol in the quebec flag