Adolfo Leoni

{{short description|Italian cyclist}}

{{Use dmy dates|date=April 2025}}

{{Infobox cyclist

| name = Adolfo Leoni

| image = Adolfo Leoni, 1950 Tour de France (cropped).jpg

| caption = Leoni at the 1950 Tour de France

| fullname = Adolfo Leoni

| nickname =

| birth_date = {{birth date|df=yes|1917|1|13}}

| birth_place = Massa, Italy

| death_date = {{death date and age|df=yes|1970|10|19|1917|1|13}}

| death_place = Gualdo Tadino, Italy

| height =

| weight =

| discipline = Road

| role = Rider

| ridertype =

| proyears1 =

| proteam1 =

| majorwins = Milan–San Remo (1942)

| medaltemplates =

{{MedalCountry| {{ITA}} }}

{{MedalSport| Men's road bicycle racing }}

{{MedalCompetition|World Championships}}

{{MedalGold |1937 Copenhagen|Amateur's Road Race}}

}}

Adolfo Leoni (Gualdo Tadino, 13 January 1917 – Massa, 19 October 1970) was an Italian professional road bicycle racer. Leoni won many classic races before, during, and after the Second World War.