Tiny Stark? That name instantly makes me think of the Marvel universe, but I’ve never come across a character officially named that in the comics or MCU. Tony Stark, of course, is the genius billionaire behind Iron Man, but 'Tiny Stark' sounds like a fan-made nickname or maybe a playful reference to a younger version of him—like a variant from a What If? scenario. I’ve seen fans joke about 'Baby Tony' or 'Tiny Tony' in fan art, especially when imagining him as a kid tinkering with tech. If it’s from a specific fanfic or indie comic, I’d love to know which one! The Marvel fandom is so creative with alternate takes, but as far as canon goes, no relation.
That said, the idea of a 'Tiny Stark' is adorable. Maybe it’s a mini AI version of JARVIS, or even a pet name Pepper uses. The MCU’s full of Easter eggs, so who knows? Until Kevin Feige confirms it, though, it’s probably just a fun headcanon. I’d totally watch a Disney+ short about a pint-sized Tony, though.