Sir Paul Pechell, 1st Baronet (12 November 1724 – 13 January 1800), was a British army officer and descendant of minor Huguenot nobility of Languedoc (originally de Péchels).
He was born in Owenstown, county Kildare, the son of army officer Jacob Pechell and his wife Jane Boyd.
In 1751, Pechell was gazetted captain in the 3rd Dragoon Guards, and in the following spring his regiment escorted George II to Harwich to embark for Hanover.
For the next three years the regiment was on coast duty suppressing smuggling in Suffolk, Essex, and Devon and patrolling against highway robbers.
Pechell was gazetted guidon in the Second Troop of Horse Grenadier Guards in 1754, and was promoted to captain in 1755, major in 1759, and lieutenant-colonel in 1762.