Marta Sierra Biography: Age, Husband, Net Worth, Height, Parents, Brands, Instagram

Marta Sierra, is a Spanish model, influencer, and social media personality, has gained widespread recognition for her colorful and creative Instagram content, which showcases her travel adventures and fashion-forward style.

She has amassed over 1 million followers on Instagram, where her innovative photo transitions and eclectic aesthetic have made her a standout in the influencer world.

A trailblazer in collaborating with major brands like Zara, Sierra also runs her website, bymartasierra.com, selling Lightroom presets to help others achieve her signature look, solidifying her influence in lifestyle and photography.

Profile

• Full Name: Marta Sierra
• Stage Name: Marta Sierra
• Born: 13 May, 1994
• Age: 31 years old
• Birthplace: Barcelona, Spain
• Nationality: Spanish
• Occupation: Model, Influencer, Social Media Personality
• Height: 5’6″
• Parents: Mr. Sierra, Mrs. Sierra
• Siblings: Unknown
• Spouse: Tom (m. 2024)
• Children: None
• Relationship: Married
• Net Worth: $2 million

Early Life and Education

Marta Sierra was born on May 13, 1994, in Barcelona, Spain, where she spent her childhood. Raised by her parents, whose names are not publicly disclosed, she has kept details about any siblings private.

She studied biotechnology and later pursued a master’s degree in Luxury Management in Paris, where she lived for a year, honing her creative and business skills. As a teenager, Sierra struggled with insecurities about her height, feeling she stood out in her class, but she channeled this into a passion for photography and fashion.

Her ethnicity is Spanish, and her religion is not publicly known.

Career

Marta Sierra began her Instagram journey on April 6, 2014, with a selfie, initially keeping her account private for friends. In 2017, she made it public, collaborating with her boyfriend, Tom, a law student, to photograph her daily outfits.

Her creative transitions and vibrant travel photos from cities like Amalfi, Rome, and Lisbon quickly gained traction, with a 2018 photo of her “eating a rainbow” going viral. By 2021, she was dedicating herself fully to content creation, becoming a pioneer in outfit transition reels, notably with a viral video at the Louvre in Paris. Her unique approach set her apart in the fashion influencer space.

Her career soared with groundbreaking brand collaborations, including being the first Spanish influencer to partner with Zara for a colorful accessories campaign in Paris, where she was given full creative control. She has also worked with brands like YolanCris, MAX&Co, Liu Jo, and Amazon, and served as an ambassador for Joyería Grau’s AURA collection, wearing a rare diamond necklace at Tiffany & Co.’s Barcelona store opening.

Named among Forbes’ top 100 Spanish content creators in 2023 and nominated for awards like the Ídolo Awards and GenZ Awards for creative content, Sierra’s influence continues to grow.

Currently, Marta Sierra maintains a robust presence with over 1 million Instagram followers and 240,000 TikTok fans, focusing on travel, fashion, and optical illusion content. She and her husband, Tom, create all their content together, maintaining creative independence without a large team.

Recent X posts in 2025 highlight her continued innovation in reels and her role as a trendsetter in Spanish influencer culture.

Social Media

• Instagram Handle: @marta__sierra
• Twitter Handle: @martasierra_

Personal Life

Marta Sierra married her longtime partner, Tom, on June 15, 2024, in Barcelona, after a 12-year relationship that began in their teens. The couple, who met when Tom was studying law, collaborates closely, with him photographing her content.

They have no children but share a pet cat named Tommy, frequently featured in her posts.

Net Worth

Marta Sierra has an estimated net worth of $2 million USD. Her income primarily derives from her influencer career, including high-profile brand partnerships with Zara, Tiffany & Co., and others, as well as revenue from her Lightroom presets sold on bymartasierra.com.

Her modeling work and social media content on Instagram and TikTok, where her engaging reels drive significant engagement, further contribute to her financial success.