
Keiko Aoki (née Nakano; born January 8, 1968) is a Japanese retired professional wrestler and professional golfer, best known under the ring name Bull Nakano and for her tenures with All Japan Women's Pro-Wrestling (AJW). She held several championships for AJW, most notably a nearly three-year reign as WWWA World Single Champion, before being phased out by the company in the early 1990s due to their age-based personnel policies.
She later became the first first World Women's Champion for Mexican promotion Consejo Mundial de Lucha Libre (CMLL) in 1992, and in 1994, signed with World Wrestling Federation (WWF, now WWE). She won the WWF Women's Championship in a back-and-forth feud with Alundra Blayze, becoming the first Japanese wrestler recognized by the promotion to do so. After retiring from wrestling, Nakano began competing as a professional golfer, and in 2006, she joined a tour with the Ladies Professional Golf Association (LPGA). She was inducted into the Wrestling Observer Newsletter Hall of Fame on 2001 and was inducted into the WWE Hall of Fame in 2024.

Stardom New Year Stars 2018 ~Stardom 7th Anniversary~
2018 · as Commentary

AJW All-Star Dream Slam I
1993 · as Bull Nakano

Tokyo Pop
1988 · as Mean Jumbo

WrestleMania XL Saturday
2024 · as Bull Nakano

WWE SummerSlam 1994
1994 · as Bull Nakano

The Best of WCW Clash of the Champions
2012 · as Bull Nakano

WWE Hall of Fame 2024
2024 · as Bull Nakano

Ring! Ring! Ring! The Champion Belt of Tears
1993

WWF SummerSlam Spectacular 1994: Sunday Night Slam
1994 · as Bull Nakano

WCW Hog Wild 1996
1996 · as Bull Nakano

Then, Now, Forever: The Evolution of WWE’s Women’s Division
2018 · as Bull Nakano (archive footage)

WCW Clash of The Champions XXXIII
1996 · as Bull Nakano

World Wrestling Peace Festival
1996

NJPW & WCW Collision In Korea
1995 · as Bull Nakano

RISE Wrestling. RISE 6 Brutality
2017 · as Bull Nakano

The Best of the WWF: volume 16 Around the World
1988 · as Bull Nakano

WWE Wham, Bam, Bodyslam!
1995 · as Bull Nakano

Bull Nakano Retirement Show
2012 · as Bull Nakano