Renzo Fontona

{{short description|Italian cyclist}}

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

{{Infobox cyclist

| name = Renzo Fontona

| image =

| image_size =

| caption =

| fullname = Renzo Fontona

| nickname =

| birth_date = {{birth date and age|df=yes|1939|7|2}}

| birth_place = Riccò del Golfo di Spezia, Italy

| height =

| weight =

| currentteam =

| discipline = Road

| role = Rider

| ridertype =

| proyears1 = 1961–1962

| proteam1 = Legnano

| proyears2 = 1963

| proteam2 = IBAC

| proyears3 = 1964–1965

| proteam3 = Ignis

| proyears4 = 1966–1967

| proteam4 = Mainetti

| proyears5 = 1968

| proteam5 = Kelvinator

| majorwins =

| medaltemplates =

| updated =

}}Renzo Fontona (born 2 July 1939) is an Italian racing cyclist. He ended up 7th at the 1963 Tour de France.