The Definitive Answer: Are Mary Tyler Moore And Steven Tyler Related?

The persistent Hollywood rumor that actress Mary Tyler Moore and Aerosmith frontman Steven Tyler are siblings has circulated for decades, fueled by their shared and famous last name. As of today, December 12, 2025, we can definitively state that despite the widespread speculation, the iconic television star and the legendary rock and roll singer are not sister and brother, nor are they closely related.

This article dives deep into the separate family histories of both stars, revealing the surprising facts about their parents, birth names, and the origins of the "Tyler" surname that caused a lifetime of confusion for fans and pop culture enthusiasts alike. The answer is rooted in two completely different family trees.

Complete Biographical Profiles

To fully understand why the sibling rumor is false, it is essential to look at the foundational facts of their lives, starting with their full biographies and family details.

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Mary Tyler Moore (1936–2017)

• Full Name: Mary Tyler Moore
• Born: December 29, 1936, in Brooklyn Heights, Brooklyn, New York, U.S.
• Died: January 25, 2017 (Age 80), in Greenwich, Connecticut, U.S.
• Parents: George Tyler Moore (father) and Marjorie Hackett (mother).
• Siblings: She was the eldest of three siblings, with a sister, Elizabeth Ann, and a brother, John.
• Spouses: Richard Carleton Meeker (m. 1955; div. 1961), Grant Tinker (m. 1962; div. 1981), S. Robert Levine (m. 1983).
• Child: Richard "Richie" Meeker (son, deceased).
• Notable Works: The Dick Van Dyke Show (1961–1966), The Mary Tyler Moore Show (1970–1977), Ordinary People (1980).

Steven Tyler (Born 1948)

• Full Name: Steven Victor Tallarico (Legally changed to Steven Tyler)
• Born: March 26, 1948, in Yonkers, New York, U.S.
• Age: 77 (as of 2025)
• Parents: Victor A. Tallarico (father, a classical musician) and Susan Ray Blancha (mother).
• Siblings: He has an older sister, Lynda Tallarico.
• Spouses: Cyrinda Foxe (m. 1978; div. 1987), Teresa Barrick (m. 1988; div. 2002).
• Children: Liv Tyler (daughter, actress), Mia Tyler (daughter), Chelsea Tyler (daughter), Taj Tyler (son).
• Notable Works: Lead singer of the band Aerosmith, known for hits like "Dream On," "Sweet Emotion," and "I Don't Want to Miss a Thing."

The Definitive Family Tree Comparison: Why They Aren't Siblings

The simplest and most conclusive evidence that Mary Tyler Moore and Steven Tyler are not related lies in the fundamental facts of their parentage and birth names. Their lives began in different families, despite both being born in New York State.

Different Parents, Different Names

The core of the issue is the parents. Mary Tyler Moore’s parents were George Tyler Moore and Marjorie Hackett. George Tyler Moore was an engineer, and the family was of English and Irish descent.

Steven Tyler, on the other hand, was born Steven Victor Tallarico. His father, Victor A. Tallarico, was of Italian and German ancestry, and his mother, Susan Blancha, was of Polish and English descent. The Tallarico family name is a clear indicator of a completely separate lineage from the Moore family.

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Steven Tyler adopted his stage name, "Steven Tyler," which eventually became his legal name, but his birth surname was Tallarico. Mary Tyler Moore's surname was Moore, and Tyler was her middle name, which was also her paternal grandmother's maiden name (Anna Veronica Tyler). This crucial distinction highlights the two stars come from completely different family backgrounds.

The Origin of the Confusion: The Shared "Tyler" Name

The rumor that they are siblings or at least cousins is a classic case of mistaken identity and the power of a shared, memorable name in pop culture. The name "Tyler" is the sole reason for the persistent speculation.

Mary Tyler Moore: A Family Name

For Mary Tyler Moore, "Tyler" was a family name. Her father was George Tyler Moore, and her paternal grandmother was Anna Veronica Tyler. The name was a legitimate part of her birth name and family heritage, rooted in her ancestry.

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Steven Tyler: A Stage Name

For Steven Tyler, "Tyler" is a stage name. He was born Steven Tallarico. While the exact reason for the name change isn't always cited, it is a common practice in the entertainment world to adopt a more memorable or marketable name. The choice of "Tyler" allowed him to drop the long Tallarico and create the iconic rock star persona for Aerosmith.

The fact that both a beloved sitcom star from the 1970s and a high-profile rock icon shared the distinct name "Tyler" was enough to spark the imagination of the public and create a rumor that social media and the internet have kept alive for decades. There has never been any credible evidence, public statement, or genealogical link to suggest they were ever related.

Two Separate Legacies: Television and Rock & Roll

Beyond the family trees, the two stars occupied completely different orbits in the entertainment industry, further cementing their separate professional identities.

Mary Tyler Moore's Television Empire

Mary Tyler Moore was an Emmy-winning actress and a successful producer. Her legacy is defined by groundbreaking roles that redefined women on television. As Laura Petrie on The Dick Van Dyke Show and, most famously, as Mary Richards on The Mary Tyler Moore Show, she became a cultural icon. Her character, Mary Richards, was a single, independent woman navigating a career in a male-dominated newsroom, inspiring a generation of women. Her work paved the way for many female-led comedies and dramas.

Steven Tyler's Rock & Roll Hall of Fame Career

Steven Tyler, born Steven Tallarico, is a founding member and the energetic frontman of Aerosmith, one of the best-selling American rock bands of all time. His career is marked by his powerful vocals, flamboyant stage presence, and songwriting partnership with guitarist Joe Perry, earning them the nickname "The Toxic Twins." His contributions to rock music, with albums like Toys in the Attic and Permanent Vacation, place him firmly in the Rock and Roll Hall of Fame, a world away from the world of 1970s television sitcoms.

In conclusion, the answer to "Is Mary Tyler Moore Steven Tyler's sister?" is a resounding no. The family trees of Mary Tyler Moore (born Moore) and Steven Tyler (born Tallarico) are distinct and separate. The common thread of the name "Tyler" is merely a coincidence—a family name for the actress and a stage name for the rocker. They remain two completely separate legends in American entertainment.