| Millennium: | 1st millennium |
| Centuries: | 8th century – 9th century – 10th century |
| Decades: | 800s 810s 820s – 830s – 840s 850s 860s |
| Years: | 830 831 832 833 834 835 836 837 838 839 |
| Categories: | Births – Deaths – Architecture Establishments – Disestablishments |
The 830s decade ran from January 1, 830 to December 31, 839.