816
| Years: 812 813 814 815 - 816 - 817 818 819 820 | |
| Decades: 780s 790s 800s - 810s - 820s 830s 840s | |
| Centuries: 8th century - 9th century - 10th century | |
Events
- Frankish king Louis the Pious crowned emperor.
- Pope Formosus (approximate date)
- Leo III, pope (795 - 816), succeeded by Pope Stephen V