Decker Nilsson Sixx is a name that connects to rock music history, but his story is quite different. When people hear the name Sixx, they think of loud music and the famous band Mötley Crüe. However, Decker Nilsson Sixx has written a different story. He is the son of rock legend Nikki Sixx, but his life looks nothing like his father’s flashy world. Instead, Decker chose a quiet, private path away from the spotlight.
Detailed Bio Table
| Detail | Information |
|---|---|
| Full Name | Decker Nilsson Sixx |
| Date of Birth | May 23, 1995 |
| Age | 29 years old (as of 2024) |
| Place of Birth | Los Angeles, California, USA |
| Father | Nikki Sixx (Musician, Mötley Crüe bassist) |
| Mother | Brandi Brandt (Former model and actress) |
| Siblings | Gunner Nicholas Sixx, Storm Brieanne Sixx, Frankie-Jean Mary Sixx, Ruby Sixx |
| Education | University of Southern California (Graduated 2021) |
| Profession | Real Estate Estimator and Developer |
| Nationality | American |
| Known For | Being Nikki Sixx’s son, Private lifestyle |
Early Life and Family Background
Decker Nilsson Sixx was born on May 23, 1995, in Los Angeles, California, during his father’s marriage to Brandi Brandt, a former Playboy model and actress. His parents married in 1989 but separated in 1996 when Decker was just a baby. Despite living a wild rock and roll life, his father tried to give his children a stable home. His name “Decker” comes from an old word meaning “digger of ditches”, representing hardworking and trusted community members.

Who Are His Parents?
Nikki Sixx, born Frank Carlton Serafino Feranna Jr. on December 11, 1958, is best known as the bassist and co-founder of Mötley Crüe. He wrote many of the band’s biggest hits and became a rock icon. Despite struggles with addiction, Nikki says being a father changed his life and gave him new purpose.
Brandi Brandt, born in 1968 in Santa Clara, California, became famous as Playboy’s Playmate of the Month in October 1987. She also worked as an actress before focusing on raising her children, providing them with a loving home.
Siblings and Family Connections
Decker has four siblings in his blended family.
Gunner Nicholas Sixx (born 1991) became a musician with his band Figs Vision.
Storm Brieanne Sixx (born 1994) prefers privacy and works in art.
Frankie-Jean Mary Sixx (born 2001) studies psychology at the University of Oregon and runs Frankie’s Crystals Co.
Ruby Sixx (born 2019) is the youngest. Despite different mothers, the siblings remain close.
Education and Career Path
Decker attended the University of Southern California and graduated in 2021. His real estate interest started during an internship at a luxury resort in Turks and Caicos. He later worked as a pre-construction manager in Scottsdale, Arizona, then moved into real estate estimation in San Diego, calculating project costs and evaluating materials.
A Private Life Away from Fame
Decker chose to live privately, avoiding red carpet events and interviews. His Instagram account “decker_sixx” has only a few thousand followers, showing simple moments like time with friends and family gatherings. This private lifestyle is not easy with a famous last name, but Decker has built his reputation based on work and character, not his father’s fame.
Relationship with His Father
Despite different lifestyles, Decker and Nikki share a close relationship. Nikki has said fatherhood changed him for the better. The two share a love of baseball and often attend games together. In 2011, when Decker was 16, he had an argument with his family and left home. Nikki called police because he was worried. Decker was found safe at a friend’s house, showing that even famous families face normal teenage problems.
Personal Life and Relationships
Decker is open about his romantic life. He has been with his girlfriend since October 2014. Unlike his generally private approach, Decker proudly shares moments with her on social media. Their long relationship shows commitment and stability.

Net Worth and Financial Status
Decker’s personal net worth is not publicly known. He built his career through his own work in real estate. Nikki Sixx’s estimated net worth is around $45 to $55 million from his music career and business ventures.
Conclusion
Decker Nilsson Sixx may be the son of a rock legend, but he has created his own story. He chose education over fame, privacy over publicity, and hard work over shortcuts. At 29, he represents a new generation of celebrity children redefining what it means to grow up famous. His story reminds us that success comes in many forms, and sometimes the quietest people make the biggest impact in their own way.
Frequently Asked Questions
1. Who is Decker Nilsson Sixx?
Decker Nilsson Sixx is the son of Nikki Sixx, bassist of Mötley Crüe, and former model Brandi Brandt. Born May 23, 1995, he works in real estate instead of entertainment.
2. What does Decker Nilsson Sixx do for work?
Decker works as a real estate estimator in San Diego, calculating project costs and managing development decisions.
3. Is Decker Nilsson Sixx in a relationship?
Yes, Decker has been with his girlfriend since October 2014 and openly shares their relationship on social media.
4. Does Decker Nilsson Sixx have siblings?
Yes, he has four siblings: Gunner Nicholas Sixx, Storm Brieanne Sixx, Frankie-Jean Mary Sixx, and Ruby Sixx.
5. Why isn’t Decker Nilsson Sixx famous like his father?
Decker chose privacy over fame. He focused on education and built a career in real estate rather than using his father’s celebrity status.
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