Trudi Le Caine, CM (née Gertrude Janowski, 1911 – September 5, 1999) was an arts patron involved with local and national arts initiatives in Ottawa, Ontario, Canada.
Born in Passau, Bavaria, she spent her youth in Teplitz-Schönau/Teplice-Šanov, Czechoslovakia before joining her stepfather, Arnold Walter, in Berlin, where he was a music editor and critic for the leftist journals Die Weltbühne and Vorwärts.
After fleeing Germany following the Nazi seizure of power in 1933, she lived first in Spain (which she had to leave after the outbreak of the Spanish Civil War in 1936) and France (where she studied at the Sorbonne) before emigrating to Canada to join her parents.
In her honour, the Community Foundation of Ottawa-Carleton maintains the Trudi LeCaine Fund.
She was close to 50 when she married Hugh Le Caine, Canadian physicist and pioneer electronic musician.