Thomas Bucknall (c.1705–c.1775) was an 18th-century Royal Navy shipbuilder based alternately at Plymouth and Portsmouth.
He was apprenticed as a shipwright, probably in Portsmouth Dockyard, and was placed on the pay roll of the Royal Navy as a Master Mastmaker on 1 November 1728.
On 27 May 1752 he was listed Master Shipwright at Portsmouth.
On 6 August 1755 he was appointed Master Shipwright of Plymouth in place of John Lock, and from that date had overall control of all shipbuilding and the Royal Navy listed his works.
As ships took a minimum of 2/3 years to build there is a lead-in period before the Navy lists his works, and only those fully built under Bucknall are listed (none from his first three years at Portsmouth were under his full control so the list begins in Plymouth): Buchnall then returned to Portsmouth in May 1762 and built: