Bucknell University is a private liberal-arts college in Lewisburg, Pennsylvania, United States. Founded in 1846 as the University at Lewisburg, it now consists of the College of Arts and Sciences, the Freeman College of Management, and the College of Engineering. It offers 65 majors and 70 minors in the sciences and humanities. Located just south of Lewisburg, the 445-acre (1.80 km²) campus rises above the West Branch of the Susquehanna River.

Approximately 3,700 undergraduate students and 50 graduate students attend Bucknell. It is a member of the Patriot League in NCAA Division I athletics. Its athletic teams are the Bucknell Bison and its mascot is Bucky the Bison.

Founded in 1846 as the University at Lewisburg, Bucknell traces its origin to a group of Baptists from White Deer Valley Baptist Church who deemed it "desirable that a Literary Institution should be established in Central Pennsylvania, embracing a High School for male pupils, another for females, a College and also a Theological Institution."

The group's efforts for the institution began to crystallize in 1845, when Stephen William Taylor, a professor at Madison University (now Colgate University) in Hamilton, New York, was asked to prepare a charter and act as general agent for the development of the institution. The charter for the University at Lewisburg, granted by the Pennsylvania General Assembly and approved by the governor on February 5, 1846, carried one stipulation–that $100,000 ($3,500,000 today) be raised before the new institution would be granted full corporate status.

In 1846, the "school preparatory to the University" opened in the basement of the First Baptist Church in Lewisburg. Known originally as the Lewisburg High School, it became in 1848 the Academic and Primary Department of the University at Lewisburg.

The school's first commencement was held on August 20, 1851, for a graduation class of seven men. Among the board members attending was James Buchanan, who would become the 15th President of the United States. Stephen Taylor officiated as his last act before assuming office as president of Madison University. One day earlier, the trustees had elected Howard Malcom as the first president of the institution, a post he held for six years.

Although the Female Institute began instruction in 1852, it wasn't until 1883 that college courses were opened to women. Bucknell, though, was committed to equal educational opportunities for women. This commitment was reflected in the words of David Jayne Hill of the Class of 1874, and president of the college from 1879 to 1888: "We need in Pennsylvania, in the geographical centre of the state, a University, not in the German but in the American sense, where every branch of non-professional knowledge can be pursued, regardless of distinction of sex. I have no well-matured plan to announce as to the sexes; but the Principal of the Female Seminary proposes to inaugurate a course for females equal to that pursued at Vassar; the two sexes having equal advantages, though not reciting together." Within five years of opening, enrollment had grown so sharply that the college built a new hall–Larison Hall–to accommodate the Female Institute.

In 1881, facing dire financial circumstances, the college turned to William Bucknell, a charter member of the board of trustees, for help. His donation of $50,000 ($1,630,000 today) saved the college from ruin. In 1886, in recognition of Bucknell's support of the college, the trustees voted unanimously to change the name of the University at Lewisburg to Bucknell University. Bucknell Hall, the first of several buildings given to the institution by Bucknell, was initially a chapel and for more than a half century the site of student theatrical and musical performances. Today, it houses the Stadler Center for Poetry.