Josias Jessop (1781–1826) was a noted canal engineer, and second son of William Jessop, one of the great canal engineers of the late eighteenth and early nineteenth centuries. He was trained by his father, and worked under him on his early projects, but proved his abilities during the construction of Bristol harbour. He became an independent consulting engineer from 1811. He died fourteen years later, a little before he reached the age of 45.

The Montgomery Canal, known colloquially as "The Monty", is a partially restored canal in eastern Powys and northwest Shropshire. The canal runs 33 miles (53 km) from the Llangollen Canal at Frankton Junction to Newtown via Llanymynech and Welshpool and crosses the England–Wales border.