Morrisville (/ˈmɒrɪsvɪl/, locally: [ˈmɑɹz-]) is a borough in Bucks County, Pennsylvania, United States.

The earliest known settlement in what is now Morrisville, was a trading post of the Dutch West India Company operating from 1624 to 1627 on an island in the Delaware River.

The settlement incorporated into a borough in 1804, taking the name of Morrisville, after Founding Father Robert Morris.

The Gershom Craft House, Summerseat, and Trenton City/Calhoun Street Bridge are listed on the National Register of Historic Places.

[4] Morrisville is also home to Graystones, the historic site marking William Penn's first Pennsylvania land purchase from the Lenape Indian tribe.

Just south of the Trenton–Morrisville Toll Bridge and the Morrisville–Trenton Railroad Bridge lie two smaller parks, the Morrisville Riverfront Preserve, an 8.8-acre tract preserving some of the last bits of the Delaware River's tidal basin, and the Morrisville Dog Park, a two pen playground for dogs big and small.

It follows a southwest-northeast alignment across the southeastern portion of the borough, crossing the Delaware River into New Jersey via the Trenton–Morrisville Toll Bridge.

Pennsylvania Route 32 also traverses the borough, following a north-south alignment via Bridge Street, Delmorr Avenue and River Road.

This immediately borders a humid subtropical climate (Cfa) as found in Falls Township.

The average wettest month is July, which corresponds with the annual peak in thunderstorm activity.

[16] The plant hardiness zone is 7a with an average annual extreme minimum air temperature of 1.6 °F (−16.9 °C).

[14] The spring bloom typically begins by April 8 and fall color usually peaks by November 3.