Mike Wheeler’s in-universe birthday is April 7, 1971.

Quick Scoop: Mike Wheeler’s Birthday

Canon-ish Answer

Most official-adjacent sources tie Mike’s birthday to April 7 in the Stranger Things timeline.

The commonly accepted full date is April 7, 1971, which lines up with the show’s early‑80s setting and his age in season 1.

Where This Comes From

  • A Stranger Things tie-in graphic novel (Stranger Things and Dungeons & Dragons) explicitly states Mike’s birthday as April 7, 1971.
  • The Stranger Things Fandom wiki lists Mike Wheeler’s in-universe birth date as April 7, 1971.
  • Fan communities and posts (Amino, Reddit birthday threads) also celebrate his birthday on April 7, reinforcing that date in fandom culture.

Is It 100% Canon?

There’s mild debate among fans about whether all comics are strictly canon to the show, but April 7 has become the standard accepted birthday for Mike Wheeler in discussions and birthday posts.

Even where people question comic canon, they usually still treat the April 7 date as the best available reference for his character.

TL;DR: When people ask “when is Mike Wheeler’s birthday,” the widely accepted answer in the Stranger Things fandom is April 7 (1971 in- universe).

Information gathered from public forums or data available on the internet and portrayed here.