| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 158 BC by topic |
| Politics |
|---|
| Categories |
| Gregorian calendar | 158 BC CLVIII BC |
| Ab urbe condita | 596 |
| Ancient Egypt era | XXXIII dynasty, 166 |
| - Pharaoh | Ptolemy VI Philometor, 23 |
| Ancient Greek era | 155th Olympiad, year 3 |
| Assyrian calendar | 4593 |
| Balinese saka calendar | N/A |
| Bengali calendar | −750 |
| Berber calendar | 793 |
| Buddhist calendar | 387 |
| Burmese calendar | −795 |
| Byzantine calendar | 5351–5352 |
| Chinese calendar | 壬午年 (Water Horse) 2540 or 2333 — to — 癸未年 (Water Goat) 2541 or 2334 |
| Coptic calendar | −441 – −440 |
| Discordian calendar | 1009 |
| Ethiopian calendar | −165 – −164 |
| Hebrew calendar | 3603–3604 |
| Hindu calendars | |
| - Vikram Samvat | −101 – −100 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2943–2944 |
| Holocene calendar | 9843 |
| Iranian calendar | 779 BP – 778 BP |
| Islamic calendar | 803 BH – 802 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 2176 |
| Minguo calendar | 2069 before ROC 民前2069年 |
| Nanakshahi calendar | −1625 |
| Seleucid era | 154/155 AG |
| Thai solar calendar | 385–386 |
| Tibetan calendar | 阳水马年 (male Water-Horse) −31 or −412 or −1184 — to — 阴水羊年 (female Water-Goat) −30 or −411 or −1183 |
Year 158 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Lepidus and Laenas (or, less frequently, year 596 Ab urbe condita) and the Sixth Year of Houyuan. The denomination 158 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.