| Competition: | Liga Alef |
| Season: | 2017–18 |
| Winners: | Hapoel Iksal Sektzia Ness Ziona |
| Prevseason: | 2016–17 |
| Nextseason: | 2018–19 |
The 2017–18 Liga Alef season was the 9th season as third tier since its re-alignment in 2009 and the 76th season of third-tier football in Israel.
| Competition: | Liga Alef North |
| Season: | 2017–18 |
| Winners: | Hapoel Iksal |
| League Topscorer: | Moti Malka (Hapoel Kafr Kana) (17) |
| Matches: | 233 |
| Total Goals: | 644 |
The table lists the positions of teams after each week of matches. In order to preserve chronological evolvements, any postponed matches are not included to the round at which they were originally scheduled, but added to the full round they were played immediately afterwards. For example, if a match is scheduled for matchday 13, but then postponed and played between days 16 and 17, it will be added to the standings for day 17.
| Competition: | Liga Alef South |
| Season: | 2017–18 |
| Winners: | Sektzia Ness Ziona |
| League Topscorer: | Yossi Asayag (Sektzia Ness Ziona) (30) |
| Matches: | 240 |
| Total Goals: | 622 |
The table lists the positions of teams after each week of matches. In order to preserve chronological evolvements, any postponed matches are not included to the round at which they were originally scheduled, but added to the full round they were played immediately afterwards. For example, if a match is scheduled for matchday 13, but then postponed and played between days 16 and 17, it will be added to the standings for day 17.
----Hapoel Kfar Saba won 5–3 on aggregate and remained in Liga Leumit. Ironi Tiberias remained in Liga Alef.