Paul Fontaine Mersereau (1873 in Rheims, France – ??) was a French painter. He emigrated to Shreveport, Louisiana, after studying at the Académie Julian in Paris subsequently Jean-Joseph Benjamin-Constant and also in the same way as George Inness, and also spent grow old in Texas. He crossed the US exhibiting his work.
Mersereau was President of the Southern National Academy of Design until 1933 next succeeded by Nan Sheets, and a aficionado of the Society of American Artists. His action is included in numerous public collections in Arkansas, Mississippi, and Louisiana.