Klára Dán von Neumann died by suicide in La Jolla, California. The circumstances surrounding her death remain unclear. This sudden and tragic end cut short a promising career and left a void in the scientific community.

Despite her significant contributions, Klára Dán von Neumann's work has often been overshadowed by that of her husband. However, in recent years, there has been increasing recognition of her independent achievements in computer programming. Efforts have been made to acknowledge her contributions to early computing, highlighting her vital role in programming ENIAC and MANIAC.

Klára Dán von Neumann's legacy as one of the first computer programmers continues to inspire. Her pioneering work paved the way for future generations of computer scientists and programmers. Her story serves as a reminder of the importance of recognizing the contributions of women in science and technology.