Westminster College is a private liberal arts college in New Wilmington, Pennsylvania, United States. Founded in 1852, it is affiliated with the Presbyterian Church (USA). The student population includes approximately 1,300 undergraduate and graduate students.

Westminster was formed as a result of a meeting on January 21, 1852, between the Ohio and Shenango Presbyteries.

Westminster is located in New Wilmington, Pennsylvania, a town of approximately 2,100 residents located 50 miles (80 km) north of Pittsburgh and 80 miles (130 km) south of Erie and Cleveland on a 300-acre (120 ha) campus.

Westminster College is accredited by the Middle States Commission on Higher Education.

In the 2025 U.S. News & World Report college rankings, Westminster College was ranked 108th (tied) of 211 national liberal arts colleges.

Westminster College has been named one of the nation’s Top 100 liberal arts colleges by Washington Monthly in its 2025 College Guide and Rankings.

In 2009, The Washington Monthly ranked Westminster College "third in social mobility" among 253 liberal arts colleges. In 2010, Forbes ranked Westminster first in the nation as the "Best College for Women in Science, Technology, Engineering and Math."

The Student Government Association (SGA) exists primarily for governing and providing entertainment for the student body.