|Centuries:||19th century – 20th century – 21st century|
|Decades:||1890s 1900s 1910s – 1920s – 1930s 1940s 1950s|
|Years:||1917 1918 1919 – 1920 – 1921 1922 1923|
Below is a list of numismatic events that occurred in 1920.
- The Bukharan tenga discontinues circulation.
- The German East African rupie discontinues its circulation in Tanganyika.
- The East African rupee is replaced by the East African florin.
- The Fiume krone discontinues circulation.
- The Ukrainian hryvnia is replaced by the karbovanets temporarily.
- The Manila Mint is established.