Nikola Tesla (10 July 1856 - 7 January 1943) is portrayed in multiple forms of popular culture.

The Serbian-American engineer has particularly been depicted in science fiction, a genre which is well-suited to address his inventions; while often exaggerated, the fictionalized variants build mostly upon his own alleged claims or ideas.

The impacts of the technologies invented by Nikola Tesla are a recurring theme in the steampunk genre of alternate technology science-fiction.

Tesla's birthday, 10 July, has been suggested by some to be World Tesla Day, Nikola Tesla Day, or simply, Tesla Day. Some organizations celebrate Tesla Day informally on 10 July.  However, The Tesla Memorial Society wrote letters to several officials asking to commemorate 10 July as international Nikola Tesla Day.