| Millennium: | 1st millennium |
|---|---|
| Centuries: | 1st century BC – 1st century – 2nd century |
| Decades: | 60s 70s 80s – 90s – 100s 110s 120s |
| Years: | 96 97 98 – 99 – 100 101 102 |
| 99 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 99 XCIX |
| Ab urbe condita | 852 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1745 – -1744 |
| Bengali calendar | -494 |
| Berber calendar | 1049 |
| Buddhist calendar | 643 |
| Burmese calendar | -539 |
| Byzantine calendar | 5607 – 5608 |
| Chinese calendar | 戊戌年十一月廿一日 (2735/2795-11-21) — to —
己亥年十二月初一日(2736/2796-12-1) |
| Coptic calendar | -185 – -184 |
| Ethiopian calendar | 91 – 92 |
| Hebrew calendar | 3859 – 3860 |
| Hindu calendars | |
| - Bikram Samwat | 155 – 156 |
| - Shaka Samvat | 21 – 22 |
| - Kali Yuga | 3200 – 3201 |
| Holocene calendar | 10099 |
| Iranian calendar | 523 BP – 522 BP |
| Islamic calendar | 539 BH – 538 BH |
| Japanese calendar | |
| Korean calendar | 2432 |
| Thai solar calendar | 642 |
Year 99 (XCIX) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar.