Brennan Donnelly Bio

(YouTube Star)

Birthday: November 3, 2002 (Scorpio)

Born In: Maryland, United States

Brennan Donnelly is an American Instagram Star. Introduced to the world of social media in his younger sister’s popular YouTube channel ‘It's The Donnellys’ (formerly known as Flippin' Katie), Brennan has emerged as an internet celebrity in his own right. The eldest of three siblings, Brennan is a well-adjusted youth residing in a loving and caring household. His family gained fame because of Brennan and his siblings, all of whom are distinguished athletes. Since he was 9 years old, he has been playing water polo and has participated in the Junior Olympics, the ODP National Tournament, and in an international competition in Canada. He is also a member of the National Junior Honor Society. Encouraged by his sister’s online popularity and the fans he himself had garnered, he set up an Instagram account and posted his first photograph in August 2015. He has amassed more than 306,000 followers on his Instagram account. He is also popular on TikTok and has over 40.9k followers and 261k likes on the platform.

Quick Facts

Age: 21 Years, 21 Year Old Males


father: Mike Donnelly

mother: Jill Donnelly

siblings: Katie (sister), Ryan (brother)

Born Country: United States

U.S. State: Maryland

Rise to Fame

Brennan Donnelly and his family have a YouTube channel called ‘It's The Donnellys.’ It is essentially about the lives of the Donnelly kids. Their parents set up the channel on May 8, 2015, and published their first video a day later. Brennan’s first appearance on the channel was in the video titled ‘Family Obstacle Course Challenge’, posted on May 30, 2015. Through his inherent athleticism and natural charm, he won over the audience as the channel grew over the course of the next few years. The channel has accumulated over 1.13 million subscribers to date.

Eventually, Brennan decided to create an Instagram account for himself in August 2015. He uploaded his first picture on August 8, 2015. As the Donnelly family channel grew, so did his Instagram account, which now has over 306,000 followers. He has also made waves on TikTok where he has close to 41k followers and 261k likes.

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Personal Life

Brennan Donnelly was born on November 3, 2002, in Maryland to Mike and Jill Donnelly. Katie is two years younger than him. He also has a younger brother, Ryan, who is four years younger. The family is of Irish descent.

Brennan is a gifted athlete, as are his siblings. When it came to choosing the sports he wanted to excel in, he picked water polo and swimming. Katie and Ryan, on the other hand, selected gymnastics and golf, respectively. Ryan also plays baseball.

Over the years, Brennan has been a part of several winning teams as a water polo player. Not only was he a member of the team that competed in the ODP National Tournament, but he was also a member of the US teams that participated in the Junior Olympics and in an international competition in Canada. He was later selected to be a part of the National Junior Honor Society.

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