Truid Aagesen Free sheet music
- Born: 1593
- Died: 1625
- Birthplace: Denmark
Truid Aagesen was a Danish composer and organist in the service of the Danish king.
His only known published music is a set of secular Cantiones for three voices which were published in Hamburg in 1608 under his Latinized name, Theodoricus Sistinus. He was also known under the name Trudo Haggaei Malmogiensis.