Cathkin High School is a state secondary school in Cambuslang, South Lanarkshire (Greater Glasgow), Scotland.

The original school was built at a cost of £1.25 million and opened in November 1970 (official duties being performed by politician Peggy Herbison), around the same time as the neighbouring housing scheme at Whitlawburn was completed.^[1] It replaced Gateside School in central Cambuslang (the campus of which was thereafter occupied by Trinity High School^[2] then by South Lanarkshire College, before being demolished in 2008).^[3]

In 2008, the school relocated to a new campus^[4] (also accommodating a nursery and a special school, Rutherglen High School)^[5][6][7] on a site previously used designated as the school's playing fields situated immediately north of its original buildings, which were subsequently demolished and redeveloped for housing (the Cathkin Rise estate by Barratt).^[8][9][10]

As of September 2015^[update] the school had 1004 pupils on the school roll and 88 full-time equivalent staff.^[11]

In May 2018, the school won the Scottish Senior Boys Shield in football for the first time, after beating St Ninian's High School, Giffnock on penalties in the final.^[12]

Cathkin uses a house system. The school is split into five houses and they are:

• Arran
• Barra
• Jura
• Skye
• Tiree

Cairns Primary (Halfway), Cathkin Primary (Cathkin/Fernhill), Hallside Primary (Drumsagard Village), Loch Primary (Whitlawburn / Springhall), West Coats Primary (Cambuslang / Kirkhill).^[13]

Notable former pupils include:

• Darren Young, footballer and manager^[14]
• Derek Young, footballer^[15]
• Duncan Weir, professional rugby union player
• Kenny McLean professional footballer