|Number of teams||10|
|International cup(s)||OFC Champions League|
|Current champions||Marist Fire|
|Most championships||Koloale FC Honiara
|2016 Solomon Islands S-League|
The Telekom S-League, commonly known as just the Solomon Islands S-League or more simply theS-League for sponsorship reasons, is a semi professional league and the top division of the Solomon Islands Football Federation. It was known as the Solomon Islands National Club Championship from 2003 till 2010, when the official name was changed.
In the current season, 2016, all teams compete in a round robin, where the team that ends at the first place are crowned champions. Together with the number 2nd, they qualify for the OFC Champions League. The bottom team is then relegated to the Second Division, while the best performing team from that league is promoted to this league.
National Club Championship (2003–10)
The Solomon Islands S-League was founded in 2003, with Koloale taking out the first premiership title. The final championship was the 2009–10 season, with the next season renamed to the Telekom S-League.
The Knockout Championship (2011–12)
All teams of the league played a knockout tournament after the 2010–11 and 2011–12 seasons, called the Knockout Championship. The winners of both competitions played a two legged play-off for a place in the OFC Champions League. In the case of the 2011–12 season play-off, Solomon Warriors won both these competitions and automatically qualified. The 8-team competition was abandoned in the 2013–14 season due to the increase of teams from 8 to 9.
Telekom S-League (2010–present)
In 2011, the competition was renamed to the Telekom S-League. Marist, Koloale, Kossa, Solomon Warriors, Makuru, Hana, Western United and Fasi Roos participated in the initial season of the new league.  The first inaugural S-League was won by Koloale.
- Guadalcanal (Honiara)
- Hana (Relegated) (Honiara)
- Koloale (Honiara)
- Kossa (Honiara)
- Malaita Kingz (Malaita)
- Marist Fire (Honiara)
- Real Kakamora (Makira-Ulawa)
- Solomon Warriors (Honiara)
- Western United (Western)
- West Honiara (Honiara)
Teams as of the 2016 season.
|2011||Koloale ||Solomon Warriors|
Performance by club
|Koloale||4||2003, 2007–08, 2009–10, 2010–11|
|Marist Fire||3||2005–06, 2008–09, 2016|
|Western United||2||2014–15, 2015–16|
|Solomon Warriors||2||2011–12, 2013–14|
- "Telekom S-League kicks off Saturday". Solomon Islands Football Federation. 10 February 2011. Retrieved 14 May 2011.
- "NSL Media Statement". Solomon Islands Football Federation. 5 January 2011. Retrieved 14 May 2011.
- "Solomon Islands – List of champions". RSSSF. 2011.
- "Koloale qualify for third O-League". SIFF. 16 June 2011. Retrieved 27 June 2011.