2015 League1 Ontario season
The 2015 Men's League1 Ontario season was the second season of play for League1 Ontario, a Division 3 semi-professional soccer league in the Canadian soccer pyramid and the highest level of soccer based in the Canadian province of Ontario.
This season saw the return of all nine teams which completed the previous season, as well as the addition of three new teams for the Men's Division. The 2015 season also marked the birth of League1 Ontario's Women's Division, which starts play with seven teams.
Changes from 2014
Three new teams joined the Men's Division for this season, resulting in a twelve-team competition for that side. As a result, the group stage of the Men's cup will change from two five-team groups to four three-team groups.The Cataraqui Clippers changed their name to the Kingston Clippers starting in this season.
Teams
| Team | City | Stadium |
| ANB Futbol | King City, ON | The Country Day School |
| Durham United FC | Pickering, ON | Kinsmen Park |
| Kingston Clippers | Kingston, ON | Tindall Field, Queen's University |
| Master's Futbol Academy | Toronto, ON | L'Amoreaux Park |
| Oakville Blue Devils | Oakville, ON | Sheridan Stadium |
| ProStars FC | Brampton, ON | Victoria Park |
| Sanjaxx Lions | Toronto, ON | Esther Shiner Stadium |
| Sigma FC | Mississauga, ON | Hershey Centre |
| Toronto FC Academy | Toronto, ON | KIA Training Ground |
| Vaughan Azzurri | Maple, ON | McNaughton Park |
| Windsor Stars | Windsor, ON | McHugh Park |
| Woodbridge Strikers | Woodbridge, ON | Vaughan Grove |
Source:
Standings
Each team will play 22 matches as part of the season; one home and one away against every other team in the league. There are no playoffs at the end of the season; the first-place team will be crowned as league champion and will face the PLSQ league champion in the Inter-Provincial Cup.Cup
The cup tournament is a separate contest from the rest of the season, in which all twelve teams from the men's division take part. It is not a form of playoffs at the end of the season, but is more like the Canadian Championship or the FA Cup, albeit only for League1 Ontario teams. All matches are separate from the regular season, and are not reflected in the season standings.The cup tournament for the men's division consists of two phases. The first phase is a group phase, where four groups of three teams play in a single round-robin format. From each group, the top two teams advance to the knockout phase, which consists of a quarterfinal, semifinal, and final.
Each match in the group stage must return a result; any match drawn after 90 minutes will advance directly to kicks from the penalty mark, with the winner receiving two points in the standings, while the loser receives one point. Likewise, any knockout round matches which are tied after full time head directly to penalty kicks instead of extra time.
Group stage
Group AGroup B
Group C
Group D
Knockout stage
;Quarterfinals;Semifinals
;Final
Inter-Provincial Cup Championship
The Inter-Provincial Cup Championship was a two-legged home-and-away series between the league champions of League1 Ontario and the Première Ligue de soccer du Québec – the only Division 3 men's semi-professional soccer leagues based fully within Canada.Oakville Blue Devils won 5–3 on aggregate
Top goalscorers
This table includes goals scored in all competitions, including both league and cup matches.| Rank | Player | Club | Goals |
| 1 |  Adonijah Reid | ANB Futbol | 20 |
| 1 | Filipe Vilela | Oakville Blue Devils | 20 |
| 3 | Joey Cicchillo | Vaughan Azzurri | 16 |
| 4 | Cyrus Rollocks | TFC Academy | 14 |
| 5 | Christian Cavalllini | Woodbridge Strikers | 12 |
| 5 | Marcel Zajac | Sigma FC | 12 |
| 7 |  Ryan McCurdy | Kingston Clippers | 11 |
| 8 | Belrum Vartanian | ANB Futbol | 10 |
| 9 | Leaford Allen | ProStars FC | 9 |
| 9 | Michael Pio | Windsor Stars | 9 |
| 9 | Tom Winski | ProStars FC | 9 |