The 1981 UCI Road World Championships took place on 30 August 1981 in Prague, Czechoslovakia.
In the same period, the 1981 UCI Track Cycling World Championships were organized in Brno.
NB : List of teams by number of riders then alphabetically.<br /> The maximum number of riders per team was 12, plus the titleholder Bernard Hinault.<br /> The number of riders at the start was 112 with 69 finishers (43 abandoned)