轮烯（Annulene）指双键完全共轭的单环多烯烃类。轮烯的化学通式可以表示为C_nH_n（当n为偶数时）或C_nH_n+1（当n为奇数时）。

轮烯命名时，以轮烯作为母体名，把环内碳原子总数用带方括号的阿拉伯数字标志在母体名称前。

Annulenes are completely conjugated monocyclic hydrocarbons. They have the general formula C_nH_n (when n is an even number) or C_nH_n+1 (when n is an odd number). The IUPAC naming conventions are that annulenes with 7 or more carbon atoms are named as [n]annulene, where n is the number of carbon atoms in their ring, though sometimes the smaller annulenes are referred to using the same notation, and benzene is sometimes referred to simply as annulene.