John Wesley Weldon (ca 1809 – 1885) was a lawyer, judge and political figure in the Province of New Brunswick, Canada.
He married Frances Chandler, the daughter of judge Joshua Upham.
In 1865, he was named judge in the Supreme Court of New Brunswick and moved to Fredericton.
Weldford Parish, New Brunswick formed in 1835, is partly named in honour of the Weldon family.
The place named Weldford is a combination of the surnames Weldon and Ford.