Revolutionary in the early 1900's, the Girls' Guide movement is something that was created exclusively for girls and women only when the society shunned women back in the early days. Now it continues its service in various ways throughout the world, including St. Mary's College.

Teachers in Charge:

• Mrs.R.D.W.Ranjith
• Mrs.P.Navaretnam
• Miss.K.Puneshka
• Miss.N.Tharmini
• Mrs.C.Mathananth