Marcel Berthet

{{short description|French cyclist}}

{{Use dmy dates|date=September 2015}}

{{Infobox sportsperson

|name=

|image=Berthet-portrait-du-coureur-cycliste-sur-son-vélo-2.jpeg

| image_size =

|caption=Marcel Berthet in 1912

|birth_date= 4 March 1887

|birth_place=Neuilly-sur-Seine, France

|death_date= 7 April 1953 (aged 65)

|death_place= Rouen, France

| height =

| weight =

|sport=Cycling

|club=

|alma_mater=

| show-medals = yes

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}}

Marcel Berthet (4 March 1887 – 7 April 1953) was a French cyclist who rode professionally between 1907 and 1923. He took part in the 1908 Tour de France, and set multiple records in one-hour ride in 1907, 1912 and 1913. He won the six-day race of Brussels in 1921 and finished second in 1920. His brother Ernest Berthet was also a competitive cyclist.