St. Ingbert (German pronunciation: [zaŋkt ˈɪŋbɛʁt] ^ⓘ; sometimes spelled in full as Sankt Ingbert; Palatine German: Dingmert or Dimbert) is a town in the Saarpfalz district in Saarland, Germany with a population of 34,971 (2021). It is situated approximately 10 km north-east of Saarbrücken and 10 km south-west of Neunkirchen.

St. Ingbert is named after the Irish Saint St Ingobert and for 300 years belonged to the electorate of Trier.

Sankt Ingbert is an old industrial town, but most of its heavy industries (coal, steel, glass) have long closed down. Major employers now include the software company SAP SE and Festo automation technologies.

The town is served by St. Ingbert railway station. St. Ingbert is situated only 10 km away from the Saarbrücken Airport.

The Saarländisches Karnevalsmuseum exhibited carnival costumes of the Saar region. It was closed in 2013.

The St. Ingberter Pfanne is a well-known cabaret event, which took first place in 1985.

The Federal Festival of Young Film (Bundesfestival junger Film) is one of the largest German-language short film festivals for young filmmakers. It has been held decentrally in St. Ingbert since 2018 and is aimed at filmmakers under the age of 29 with prizes worth 20,000 euros.

The Internationales Jazzfestival Sankt Ingbert took place from 1987 until 2019.