Sienna Fizz

Sienna Fizz is a British YouTube personality best known as a central figure on the family vlog channel Family Fizz. Alongside her older half-sister Mia, she creates family-friendly content that includes challenges, games, and daily vlogs, attracting a loyal audience of over 480,000 subscribers. Her energetic and cheerful on-screen presence has made her a recognizable face in the family vlogging space, with appearances on television shows like Little Big Shots in 2018. As of 2026, she continues to expand her digital footprint with personal channels dedicated to gaming and sister-led content.[edit]

Sienna Fizz was born in England and grew up in a household that embraced online content creation from an early age. Her first foray into YouTube came in July 2014 with the launch of Vegan Kid TV, a channel originally focused on plant-based family life. The channel later rebranded as Family Fizz, broadening its scope to include games, challenges, and everyday vlogs. Before the channel gained traction, Sienna appeared on the television show Little Big Shots in 2018, showcasing her personality to a national audience. Growing up with her older half-sister Mia and younger siblings Karma and Koa, she developed a natural comfort in front of the camera, which became the foundation of her online career.[edit]

Family Fizz became Sienna's primary platform, growing steadily through consistent uploads of family vlogs, challenge videos, and interactive content. The channel's subscriber base crossed 480,000 as the family's dynamic and lighthearted approach resonated with viewers. In addition to the main channel, Sienna launched her own gaming channel, Super Sienna, where she shares gameplay and commentary. She and Mia also co-host The Fizz Sisters, a secondary channel that features sister-focused content. Her television appearance on Little Big Shots in 2018 remains a notable milestone, marking her first exposure beyond YouTube.[edit]

Sienna is perceived as a bubbly and energetic young YouTuber who brings a playful dynamic to Family Fizz. Her content is characterized by bright, family-oriented themes that appeal to children and parents alike. Fans appreciate her genuine reactions and the close bond she shares with her siblings, particularly Mia. While no official fandom name exists, viewers often refer to themselves as part of the Family Fizz community. Her social media presence extends to Instagram and TikTok, where she shares behind-the-scenes moments and interacts with followers.[edit]

Sienna Fizz has built a recognizable presence within the family vlogging sphere, though she does not currently hold a placement in the published Global Top 1,000 rankings. The iFANN Global Fame Engine evaluated her profile in August 2026 and determined that she is currently unranked on the global scale. This status reflects her position as a prominent minor content creator rather than a figure with worldwide celebrity metrics comparable to top-tier adult entertainers. Her influence is concentrated within the #FizzFam community, a dedicated fanbase that identifies strongly with the Family Fizz brand. Fans engage deeply through specific viral challenges like Sienna Copies Mia for 24 Hours, which stands as a foundational memory for new subscribers. The audience also follows her personal milestones, such as her gymnastics progression to Level 4 UK, creating a supportive environment centered on family-friendly entertainment. While no formal fandom name exists outside of the hashtag used by the community, the engagement remains high across platforms like Instagram and YouTube. The collective interaction focuses on watching daily vlogs and reacting to family skits rather than organizing large-scale campaigns or political activism. This digital-first approach allows fans to participate in shared cultural touchstones without the need for traditional meet-and-greets. The lack of a global ranking underscores the niche nature of her fame, which thrives on consistent content creation and genuine sibling dynamics rather than broad media saturation.[edit]

Sienna's personal gaming channel Super Sienna was created to share her love of video games, a hobby she often discusses in vlogs. The Family Fizz channel originally started as Vegan Kid TV, reflecting the family's earlier plant-based lifestyle. She is the younger half-sister of Mia Fizz, who is also a prominent YouTuber. Sienna has a younger sister named Karma and a younger brother named Koa, both of whom appear in videos. Her family often celebrates milestones like birthdays and holidays on the channel, giving fans a glimpse into their everyday life. One of the most retold stories among the #FizzFam involves the challenge where Sienna attempts to replicate her older sister Mia's behavior for a full day, a video that garnered millions of views and became a defining moment for the channel. Fans frequently discuss her lifelong commitment to veganism, viewing it as a core part of her character identity. Another popular recurring theme features Sienna pretending to be an adult for a day, a trope that generates significant viewer engagement and comments about her maturity. These moments serve as the primary legends of her young career, rooted entirely in verified family content rather than external folklore.[edit]

Sienna's parents, Georgie and Darren Fizz, are active participants in Family Fizz videos, often appearing in challenges and vlogs. She has an older half-sister, Mia, who co-stars on the channel, and two younger siblings: sister Karma and brother Koa. The family lives in England and maintains a close-knit household centered around their online content. Pets have occasionally been featured in videos, though specific details are not publicly documented.[edit]

Sienna Fizz is closely associated with her older half-sister Mia Fizz, with whom she co-stars on Family Fizz and co-hosts The Fizz Sisters channel. Her parents, Georgie and Darren Fizz, are also regular contributors to the family vlogs. The Fizz family as a unit is the core of the channel's identity.[edit]

As of 2026, Sienna Fizz is a minor and has no public romantic relationships. Her focus remains on her family and her YouTube career, with no dating history documented in public sources.[edit]

As a minor and a member of the Family Fizz channel, Sienna Fizz's personal net worth remains private. The family channel generates revenue through ad income, brand sponsorships, and merchandise sales. With over 480,000 subscribers, the channel's estimated annual earnings range from $50,000 to $150,000, contributing to a household net worth that supports the family. While Sienna's individual share is not specified, per iFANN's editorial analysis, her net worth in 2026 is estimated at around $1 Million, factoring in the channel's cumulative success and her personal brand extensions.[edit]