Heidi Lehwalder (born in Seattle, Washington in 1949) is an American classical harpist. She is internationally renowned as one of the world's greatest harp prodigies, and as the final student of master Carlos Salzedo. Leonard Bernstein said of her, "...The main thing to tell you about Heidi is that she is simply a genius," in his notes for the Young People's Concerts. She was the first recipient of the prestigious Avery Fisher Career Grant. On December 23, 1963, Lehwalder appeared on Leonard Bernstein’s Young People's Concerts on CBS at the age of 14.