From his official Twitter account he used the N-word in a series of posts and branded other users “retarded” and “f****ts”.
The 22-year-old brother of Conor Maynard currently has more than 1.2m subscribers to his YouTube channel and is one of the 10 campmates taking part in this year's series.
The majority of the tweets were posted in 2012 and have since been removed from the social networking site.
A representative for the internet video blogger said: "Jack is ashamed of what he said in these tweets, many of which were deleted a long time ago and were sent in response to a neighbour who was bullying him.Related articles
ITV • TWITTERI'm A Celebrity 2017: Jack Maynard's racial and abusive tweets EXPOSED 'He's ashamed'