Quick Answer
Astro Boy is streaming on Amazon Prime Video, RetroCrush Amazon Channel. 193 episodes (~77h total watch time). Availability may vary by region.
Where to Watch Astro Boy
Astro Boy is currently on Amazon Prime Video, RetroCrush Amazon Channel. Keep in mind that catalogs change by region — if you don't see it on your usual service, check the other platforms listed here.
Confirmed Streaming Platforms
Subscription availability by JustWatch
More Ways to Watch Astro Boy (US)
Buy
Availability data by JustWatch
Check Other Platforms
Anime licensing changes by region. If Astro Boyisn't on your usual service, try these.
About Astro Boy
Devastated over losing his only child in a car accident, Dr. Umatarou Tenma, the director of the Ministry of Science, mobilizes the institution's entire staff to create Atom: an ultimate technology robot made in his late son Tobio's exact image. Aside from unmatched power and intelligence, the robot also possesses the innocence and playfulness of a young boy. However, Atom fails to meet Tenma's expectations when the latter realizes that Tobio's replacement cannot grow. Unable to recognize Atom...
Full details on MyAnimePulseFrequently Asked Questions
Where can I watch Astro Boy legally?
Right now, Astro Boy is on Amazon Prime Video, RetroCrush Amazon Channel. That said, anime licensing varies a lot by country — what's on Netflix in Japan might not be on Netflix in the US. If your go-to platform doesn't have it, try the other services listed above.
Is Astro Boy on Netflix or Crunchyroll?
Can't confirm either right now. Both platforms rotate their catalogs pretty often, so it's worth searching directly on each one.
Is Astro Boy available with an English dub?
Dub availability depends on the platform. Crunchyroll has been expanding their dubbed library a lot recently, and Funimation (now merged into Crunchyroll) historically had the biggest dub catalog. Check each platform's listing for Astro Boy.
Can I watch Astro Boy for free?
Crunchyroll offers a free ad-supported tier for some shows. Most other platforms require a subscription, but many offer free trials for new users. Tubi and Pluto TV occasionally have anime in their free rotation too.