800s may refer to: * The period from 800 to 899, almost synonymous with the 9th century (801–900). * The period from 800 to 809, known as the 800s decade, almost synonymous with the 81st decade (801-810). This disambiguation page lists articles associated with the same title formed as a letter-number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article.