The name Tesla is a girl's name of Slavic, Serbian, Croatian origin meaning "from Thessaly". Tesla and discussed in our forums with posts like "Heaven/Hell/Purgatory Themed Girls".
From the experts:
Tesla, the surname of Serbian inventor Nikola Tesla that has more recently been used as the brand name for an electric car, is gaining some use as a first name for girls. Exactly 100 girls were named Tesla in the U.S. last year. You might think of the name as a Tessa/Isla hybrid, though with Tesla the s is not silent. There was also a rock band named Tesla.