The Scottish Junior Football Association, West Region was one of three regions of the SJFA which organised its own distinct league and cup competitions. The SJFA used to be split into six regions, but in 2002 they decided to reform into three (East, North and West) to try to ensure more games between the top clubs and hence increase their revenues. The region covered an area from Girvan in South Ayrshire to Denny in Central Scotland.

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Towards the end of the 2019–20 campaign, the coronavirus pandemic interrupted the season and caused the West Region leagues to be curtailed, with champions later declared on a 'points per game' basis by the West Region management committee. At that time there were 63 member clubs in the setup.

The West Region organised several cup competitions for member clubs:

• West of Scotland Cup: This was a knockout tournament for all West Region clubs. The competition originated as the Scottish Intermediate Cup in 1927–28 and was renamed The West of Scotland Cup following the ending of the Intermediate dispute in 1931.^[6]
• Sectional League Cup: Introduced for the 2018–19 season as a combination of the Central and Ayrshire sectional league cups, clubs competed in eight regional groups with the group winners progressing to the knockout stages.
• Evening Times Champions Cup: This was a knockout tournament played at the end of the season between the winners of the four or five West Region league competitions during the preceding season. The champions of the Ayrshire District League and Central District Second Division played in a preliminary round tie with the winners of that game joining the other three clubs at the semi-final stage.^[7] The Evening Times trophy was first presented in 1896–97 to the winners of the Glasgow Junior League and has been awarded to the winners of various competitions over the years. Between 2003 and 2012, the competition involved all ten league and cup winners in the West Region and was known as the Evening Times Cup Winners Cup.^[8]

Pre-2018 competitions

• Central League Cup. This was a knockout tournament for former Central Region clubs in the West Region. It was first played for in 1921–22 when known as the Glasgow Junior League Cup.
• Ayrshire Cup. This was a knockout tournament for former Ayrshire Region clubs in the West Region. The tournament originated in 1889–90 as the Ayrshire Junior Challenge Cup and was won for the first three seasons by Glenbuck Cherrypickers.^[9]
• Central Sectional League Cup. This tournament was for former Central Region clubs and was the opening competition of the season. Clubs initially competed in eight groups (sections) with the group winners advancing to a knockout competition. Based geographically, the groups comprised the same clubs each season. Matches in the group stages were played under league rules so a player was not cup-tied by turning out for a particular club.
• Ayrshire Sectional League Cup. This tournament was for former Ayrshire Region clubs. Clubs initially competed in four groups (sections) with group winners and runners up advancing to the knockout stages, otherwise the format was the same as that of the Central Sectional League Cup