| Lokmanya Tilak High School | |
| Motto: | Learning leads to light |
| Address: | 41/1, Tilak Nagar, Chembur |
| City: | Mumbai |
| State: | Maharashtra |
| Postcode: | 400 089 |
| Country: | India |
| Pushpin Map: | India Maharashtra#India |
| Gender: | Co-educational |
| School Board: | Maharashtra State Board[1] |
| District: | Mumbai Suburban District |
| Session: | Day |
| School Code: | 33 – 03 – 003 |
| Students: | 1500 |
| Classes Offered: | Nursery to class X |
| Medium Of Language: | English |
| Campus Type: | Urban |
| Houses: | Red, Yellow, Green and Blue |
| Team Name: | Lokmanyites |
Lokmanya Tilak High School (often abbreviated as LTHS or LTES), is an English medium school located in Tilak Nagar, Chembur in Mumbai, India. It began operating in 1967, drawing its students mainly from middle-class families in the area around Tilak Nagar. A semi-government School, it is owned by Tilak Nagar Education Society and managed by the Government of Maharashtra and it is affiliated to Maharashtra SSC Board.[2] The school is named after Bal Gangadhar Tilak (1856–1920).
The school building has two floors. The ground floor consists of 8 classrooms and Primary school Principal office. It also contains the Secondary Principals' cabin and an office with around four class rooms. In addition, it includes a Science laboratory, a Computer lab, and a library.
The second floor is made out of seven class rooms, three of which have been built recently. Playgrounds are not present within the school because of space limitations, but it does have a long jump pit and high jump has been played in premises as well; the adjacent Municipal Ground is used for sports and the Annual Sports Day activities. The Tilak Nagar police station is adjacent to the school premises.
Subjects taught include English as a First Language, Marathi as a Second Language, Hindi, Sanskrit, History, Geography, Algebra, Geometry, and Science.
The school organizes Annual Day, Annual Sports Day, and sports events. Students represent the school in inter-school activities including sports, drawing competitions, elocution and essay writing competitions, dance, quiz competitions, and Scouting & Guiding.
The School Alumni team organized a Golden Jubilee Celebration called '"SWARNARPAN"' in 2016 inviting the alumni's Primary and Secondary School teachers.
The school motto; "Learning leads to light" refers to enlightening the darkness in society through the medium of education.