Esprit-Tranquille Maistral (Quimper, 21 May 1763 - Guipavas, 5 November 1815) was a French Navy officer.
Born to François Louis Maistral, a physician, and to his wife Françoise Yvonne Bouisse, Esprit-Tranquille Maistral joined the Navy as a boy on 1 July 1775 on Oiseau. The next year, he served as a sailor on Roland, and on 27 April 1778, he was promoted helmsman on the Bretagne.
On 29 June 1778, he volunteered for service on the Vengeur, taking part in the Battle of Ushant (1778), the Battle of Grenada, the Battle of Martinique (1779), the Battle of Martinique (1780) and in action off Saint Lucia on 16 and 19 May 1780.
On 18 February 1781, he was promoted to Lieutenant de frégate, and appointed to Scipion. Aboard, he took part in the Battle of Fort Royal, the Battle of the Chesapeake, the Battle of Saint Kitts, and the Battle of the Saintes. In the Action of 18 October 1782, Maistral was wounded by a splinter. After the sinking of Scipion on 20 October, Maistral returned to France in April 1782 on Fantasque, arriving in July.
On 22 July 1783, Maistral was promoted to lieutenant de frégate entretenu, and appointed to the fluyt Étoile. In October 1783, Étoile departed Lorient, bound for San Domingo where she arrived in September 1784. The next year, he transferred to the fluyt Mulet in Brest, and left in October 1785 for San Domingo, which he reached in April of the next year.