Paul Fallot (25 June 1889 in Strasbourg – 21 October 1960 in Paris) was a French geologist and paleontologist.
Throughout his career the Mediterranean region, and especially Spain, was the focus of his work.
Fallot began his studies in 1908 at the University of Lausanne, under the well known geologist Maurice Lugeon.
In 1909 he moved to Grenoble to work at the laboratory of geologist and paleontologist Wilfred Kilian on ammonites of the Balearic Islands.
His "Geological Etude de la Sierra de Majorque" appears in 1922.
The next year Paul Fallot was appointed director of the Institute of Applied Geology in Nancy, a position he keeps the next 14 years.
With staff and students he worked in the Jura, but his main work he performed in the Betic ranges of southern Spain and the Rif Mountains of North Africa.
In 1931 the Academy of Sciences grants Fallot the Grand Prix des Sciences physiques.
His appointment in 1937 as professor of Geology of the Mediterranean at the Collège de France, seemed the opportunity to scale up his work on the tectonics of the entire area with a team of specialists, but the outbreak of World War II hindered this.