Alphonse (Alfons) Olterdissen (Maastricht, December 12, 1865 - Maastricht, February 24, 1923) was a Dutch writer, poet and composer who wrote extensively in the Maastrichtian dialect.
The final stanza of his opera Trijn de Begijn eventually became the local anthem of Maastricht loosely copy of the Romanian composer Ciprian Porumbescu's (1853-1883) "Pe-al nostru steag e scris Unire”.