Thuisbrunn is a village in the municipality of Gräfenberg and lies in the region of Franconian Switzerland in Germany.
In 1007 Emperor Henry II gifted the town of Forchheim and its surrounding villages to the Bishopric of Bamberg. Amon the outlying villages was Tuosibruno, present-day Thuisbrunn. The village thus has a thousand-year-old history. In 1403 it was promised to the Nuremberg burgrave, John III.
From 1403 to 1803 Thuisbrunn belonged to the Principality of Brandenburg-Culmbach-Bayreuth. In 1449, during the First Margrave War, the village and castle were largely burned down. In 1450 the village came under the rule of the noble family of the Egloffsteins. After the Reformation the village became Protestant. In the First and Second Margrave Wars the village and castle were destroyed again. Since then the castle has been a ruin, only one building was used as a vogtei. In 1803 Thuisbrunn went to the Electorate of Bavaria. The Vogt's house became a state forestry office.
On 1 May 1978, the formerly independent parish was incorporated as part of the district reform into Gräfenberg, along with the villages of Haidhof, Hohenschwärz, Neusles, Höfles and Dörnhof. The remaining element of the parish went to Obertrubach.