St Martins is a parish in Perth and Kinross, Scotland, just north of the Sidlaws range of hills, about 4.3 miles (6.9 km) north-northeast of Perth and 1.2 miles (1.9 km) northwest of Balbeggie.

[1] The parish is named for Martin of Tours, of Lower Hungary.

[2] Perth Airport, at Scone, is 1 mile (1.6 km) to the south, and the parish is beneath the climb-out of aircraft departing from runway 03.

[3] The parish is mentioned in William Shakespeare's Macbeth, in a scene in which the title character meets with two witches on a moor in the parish.

The location is marked by today's Witches' Stone.