Creator Joe Brumm conceived the idea for Bluey while working on Charlie and Lola with Mark Paterson, and originally intended to create the show as an Australian replica of Peppa Pig.

Brumm briefly considered making Bluey an adult-rated version of Peppa Pig dealing with challenges like breastfeeding, but abandoned the idea after learning about the show The Letdown and returned to the children's show concept.

The first pilot contained 'dangerous' character behaviours that drew studio attention, including Bandit pushing Bluey on a swing in an unsafe way.

An Australian Red Kelpie named Rusty was originally the title character of the series in its early development before being changed to a Blue Heeler named Bluey, inspired by a dog Brumm had in his childhood.

David McCormack, the voice of Bandit, was initially approached to read what he assumed would only be 'a couple of lines' but ended up voicing the character for the entire pilot; he records his lines remotely in Sydney without hearing other actors or seeing footage.

The child characters, including Bluey and Bingo, are voiced by children of the production crew and are not credited on screen as voice actors.

Creator Joe Brumm's own mother, Chris Brumm, voices Nana Heeler, while his younger brother Dan Brumm voices Uncle Stripe and also works as the show's sound designer.

During COVID-19 lockdowns, the 50-person production staff had to work remotely, leaving only a skeleton crew of three at the studio, which gradually increased to 10 and then 20 as restrictions eased.

Extra staff were specially hired to produce 'The Sign', a 28-minute-long episode that aired towards the end of Series 3.

Every episode of Bluey is individually scored with original music, a decision made by Brumm inspired by the compositions of Charlie and Lola; classical pieces like Beethoven's 'Ode to Joy' and Mozart's 'Rondo Alla Turca' have been reinterpreted in episodes.

Megan Washington, who voices the character Calypso, re-recorded her own song 'Lazarus Drug' from her album Batflowers to feature in the ending scene of the episode 'The Sign'.

Cartoon Network executives reportedly tried but failed to acquire the international rights to Bluey before Disney secured them in 2019.

Despite airing internationally, producers refused requests to replace the Australian accents of the characters, and Disney's American test audiences liked the accents and understood the humour.

An ABC apology was issued in 2020 after viewer complaints about the term 'ooga booga' used in two episodes, which was criticised for its racial connotations; the episodes were edited to remove the term.

The episode 'Dad Baby' never aired on Disney's outlets, with Polygon speculating it was withheld due to its depictions of pregnancy and childbirth; it was eventually released on the show's YouTube channel in 2024.

The episode 'The Sign' became the highest-rated episode in the show's history, drawing 2.288 million Australian viewers across two broadcasts and being streamed 10.4 million times globally on Disney+ within a week.