Stonyhurst Southville International School is a learning institution in the province of Batangas, Philippines, and one of the Southville Global Education Network (SGEN) schools.

SSIS, originally Stonyhurst School, (lacking the later mentioned international title given) was founded in 1996 offering only a pre-school program and practicing in an English speaking environment. The name a reference to Stonyhurst College in the UK, the school where Peter P. Laurel, the founder of the school, studied.

In 1997, the grade school department opened with Integrated Program, a developmental model for elementary schools, designed to better meet the challenges of the 21st century. This allowed Stonyhurst School to enroll more and older students. Which gave the school a reason to expand its grounds and start constructing new school facilities.

In 2005, Stonyhurst was granted by the Securities and Exchange Commission, upon recommendation of the Department of Education, the international status thus the current name, Stonyhurst International School. The year after, it merged with a different large International School in the Philippines, Southville International School and Colleges, which helped allow the school to build its second campus in Lipa City, The Philippines.

In 2009, The Western Association of Schools and Colleges (WASC) granted Stonyhurst Southville International School full accreditation.

In 2017, the school added robotics in its pre-school, grade school, and high school curriculum and integrated a robotics lab making use of robotic programs involving Hexbots and Arduino.

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Stonyhurst Southville International School – Malarayat (SSISM) was established in 2007. Originally situated in a small house with 44 students, SSISM now has more than 500 students.

The Early Childhood Education Department (ECED) of SSIS Batangas accepts children from Nursery (2 years old), Pre-Kinder (3 years old), Junior Kinder (4 years old), Senior Kinder (5 years old), Grade 1 (6 years old) and Grade 2 (7 years old).

The Early Childhood Education Department’s curriculum is patterned after Pennsylvania Standards.

The SSIS Grade School (GS) Department consists of students from the 3rd, 4th, 5th and 6th Grades. Aside from the academic subjects – Math, Science, English, Social Studies, Languages, there are also courses on Arts, Culture and Sports - Physical Education, Values Education, Home Economics, Technology, Robotics, Financial Literacy, Football and Interest Clubs.

The SSIS Grade School and High School sections are generally patterned after the Common Core State Standards for English, UK Standards for Mathematics and Science, and NCTM (National Council of Teacher of Math).

Aside from the courses in Mathematics, English, Science, Social Living and Global Education, Filipino, Home Economics and Technological Arts, Computer/Robotics, Music, Arts, Physical Education and Foreign Language (which are also offered in the Grade School Department), the High School Department also offers courses on Economics, Accounting, Investment Management & Entrepreneurship and Financial Literacy.

Senior High School (SHS) covers the last two years of the K-12 Program in accordance to the Republic Act No. 10533, also known as the Enhanced Basic Education Act. SSIS follows the core curriculum and subjects under the track of their choice. SSIS also incorporates the international standards in English, Math, and Science courses.

The Senior High School of SSIS Malarayat offers the STEM and the ABM Strands. STEM stands for Science, Technology, Engineering and Mathematics and ABM stands for Accountancy, Business and Management. Below is the list of courses offered for each strand.

Science, Technology, Engineering and Mathematics (STEM). This strand focuses on University and College courses such as Chemical Engineering, Electrical Engineering, Industrial Engineering, Computer Engineering, Safety Engineering, Civil Engineering, Marine Engineering, Information Technology, Computer Programming, Data Encoding, Data Analyzing, Pre-Medical Courses, Doctor of Medicine, Doctor of Dental Medicine, Nursing, Medical Technology, Radiologic Technology, Phlebotomy, Pharmacy, Chemical Science, Biological Science, Physical Science, Organic Chemistry and the like. Specialised Subjects that are included under this strand are Chemistry 1 & 2, Biology 1&2, Practical Research, Pre-Calculus, Calculus, Business Math, Physics 1 & 2.

Accountancy, Business and Management (ABM). This strand focuses on University and College courses such as Accountancy, Entrepreneurship, Business Management, Marketing and the like. Specialised Subjects that are included under this strand are Business Ethics and Social Responsibility, Marketing, Business Organisation and Environment, Business Math, Economics, Finance and Accounts, Business Plan, Practical Research.

Stonyhurst Southville International School is a member of the Southville Global Education Network (SGEN), and is affiliated with its following sister schools:

• Southville International School affiliated with Foreign Universities (SISFU)
• Southville International School and Colleges
• South Mansfield College
• South SEED LPDH College