Since The Nightingale is a creation of Hans Christian Andersen, it doesn't have folktales similar to it across cultures. Read more about the tale on the Annotations and Modern Interpretations pages.
Further Reading
Oscar Wilde wrote a fairy tale, The Nightingale and the Rose, as an ironic response to Andersen's Nightingale. Wilde was not impressed with Andersen's view of sacrifice and shows his feelings in his tale.