| Liga 3 Bali | |
| Year: | 2018 |
| Num Teams: | 10 |
| Defending Champions: | Persekaba Bali |
| Champions: | Putra Tresna |
| Count: | 1 |
| Runner-Up: | Perseden |
| Third: | Undiksha |
| Fourth: | Perst |
| Continentalcup1: | Regional Round |
| Continentalcup1 Qualifiers: | Putra Tresna |
| Matches: | 24 |
| Goals: | 96 |
| Prevseason: | 2017 |
| Nextseason: | 2019 |
The 2018 Liga 3 Bali was the third edition of Liga 3 Bali as a qualifying round for the Lesser Sunda Islands (Bali Nusra) regional round of 2018 Liga 3. Persekaba Bali were the defending champions. The competition started on 2 July 2018 and finished on 18 July 2018.[1]
Putra Tresna won their first Liga 3 Bali title following a 2–0 victory over Perseden Denpasar after extra time on 18 July 2018. Putra Tresna would represent Bali Region for the Lesser Sunda Islands regional round.[2]
In this competition, the teams were divided into two groups of five. The two best teams were through to knockout stage. The winner represented Bali Region in Lesser Sunda Islands regional round of 2018 Liga 3.
There were 10 teams participated in the league this season.
| Team | City/Regency |
|---|---|
| Bali | Bantul, Yogyakarta |
| Bintang Persi Putra | Badung |
| Persekaba Bali | Badung |
| Perseden | Denpasar |
| Perst | Tabanan |
| Pro Kundalini | Denpasar |
| Putra Pegok | Denpasar |
| Putra Tresna | Denpasar |
| Tunas Muda | Gianyar |
| Undiksha | Buleleng |
This stage started on 2 July 2018 and finished on 11 July 2018.
|}
|}
|}
|}
|}