St.Teresa's High School (STHS) is a government aided, private co-educational day school, located at Charni Road in Mumbai, India. The institution was founded in 1843 & present day School Building was established in 1924. The school caters to pupils from kindergarten up to class 10 and the medium of instruction is English. The school is affiliated to the Archdiocesan Board of Education, Mumbai, which conducts the Maharashtra State Board of Secondary and Higher Secondary Education examinations at the close of class 10.