Christina Adriana Arendina (Dina) Koudijs-Appeldoorn (26 December 1884 in Rotterdam, the Netherlands – 4 December 1938 in The Hague) was a Dutch composer and pianist whose works, such as her two symphonic poems Noordzee-symfonie and Volkfeest, were written in the Romantic style. She also had a predilection for programme music, as is evidenced by her four movement suite Woudsproke.