TOI-1338 b is a Saturn-sized exoplanet orbiting the binary star system TOI-1338. It is a circumbinary planet, meaning it orbits both stars. The planet and its two stars are located in the constellation Pictor, about 1,300 light-years from Earth. It is the innermost planet of the TOI-1338 planetary system, orbiting the stars' center of mass every 95 days at an average distance of 0.46 astronomical units. The planet has an average temperature of 630 K. When viewed from Earth, the planet transits or passes in front of its parent stars and blocks out some of their light, allowing it to be detected by telescopes.