1921 in aviation

Years in aviation:	1918 1919 1920 1921 1922 1923 1924
Centuries:	19th century · 20th century · 21st century
Decades:	1890s 1900s 1910s 1920s 1930s 1940s 1950s
Years:	1918 1919 1920 1921 1922 1923 1924

This is a list of aviation-related events from 1921: