A regional election took place in Brittany, France, on March 15, 1998, along with all other regions.

PartyVotes%Seats UDF330,21027.12%17 RPR114,8519.44%17 Miscellaneous Right26,3022.17%3RPR-UDF 471,36338.73%37 PS-PCF-PRG-Les Verts415,78934.15%31 The Greens17,0921.41%3Left 432,88135.56%34 FN100,7398.28%7 LCR-LO89,1087.32%3Others85,6097.04%1 CPNT GE37,9073.12%1Total1,217,607100.00%83