Ludwig Durlacher, also known as Louis Attila, (July 2, 1844 – March 15, 1924) was a Grand Duchy of Baden-born American strongman, gym owner and personal trainer.

He trained members of European royal families and American high society as well as athletes like Eugen Sandow and James J. Corbett.

[1][2][3] He was trained by Italian strongman Felice Napoli from a young age, and he later joined the Baden Sharpshooters, a sports club.

[2] He toured all over Europe, including at the Folies Bergère in Paris and the Alhambra Theatre in London.

He opened a gym in New York City known as Attila's Athletic Studio and School of Physical Culture.