| Competition: | Hong Kong First Division |
| Season: | 2018–19 |
| Winners: | Happy Valley |
| Promoted: | Happy Valley Rangers |
| Relegated: | Double Flower Mutual |
| League Topscorer: | Ndue Mujeci (Happy Valley) (29 goals)[1] |
| Biggest Home Win: | (17 February 2019) |
| Biggest Away Win: | (10 February 2019) |
| Highest Scoring: | (10 February 2019) |
| Matches: | 182 |
| Total Goals: | 673 |
| Longest Wins: | 13 matches Happy Valley |
| Longest Unbeaten: | 18 matches Happy Valley |
| Longest Winless: | 22 matches Mutual |
| Longest Losses: | 14 matches Mutual |
| Prevseason: | 2017–18 |
| Nextseason: | 2019–20 |
The 2018–19 Hong Kong First Division League was the 5th season of Hong Kong First Division since it became the second-tier football league in Hong Kong in 2014–15.[2] The season began on 9 September 2018 and ended on 12 May 2019.