Ken Griffey Jr Signed Baseball Memorabilia
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$399.00Ken Griffey Jr. Autographed Official MLB Baseball Seattle Mariners "630 HRs" Beckett BAS Witness Stock #212461
This is an Official MLB Baseball that has been hand signed by Ken Griffey Jr. This item was inscribed "630 HRs." This item has been witnessed and c...
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$499.00Ken Griffey Jr. & Ichiro Suzuki Autographed 8x10 Photo Seattle Mariners Signed In Teal Beckett BAS Witness Stock #217971
This is an 8x10 Photo that has been hand signed by Ken Griffey Jr. & Ichiro Suzuki. This item has been witnessed and certified authentic by Bec...
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$599.00Chicago White Sox Ken Griffey Jr. Autographed Black Nike Jersey Size XL Beckett BAS Witness Stock #212472
This is a Black Nike Chicago White Sox Jersey that has been hand signed by Ken Griffey Jr. This jersey is Size XL. This item has been witnessed and...
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$699.00Cincinnati Reds Ken Griffey Jr. Autographed Red Authentic Mitchell & Ness 2005 Cooperstown Collection Jersey Size 44 Beckett BAS Witness
This is a Red Authentic Mitchell and Ness Cincinnati Reds 2005 Cooperstown Collection Jersey that has been hand signed by Ken Griffey Jr. This jers...
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$699.00Seattle Mariners Ken Griffey Jr. Autographed Teal Nike Jersey Size M Beckett BAS Witness
This is a Teal Nike Seattle Mariners Jersey that has been hand signed by Ken Griffey Jr. This jersey is Size M. This item has been witnessed and ce...
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$799.00Ken Griffey Jr., Ichiro Suzuki & Edgar Martinez Autographed Official Hall of Fame HOF Logo MLB Baseball Seattle Mariners IS Holo & Beckett BAS Witness
This is an Official Hall of Fame HOF Logo MLB Baseball that has been hand signed by Ken Griffey Jr., Ichiro Suzuki and Edgar Martinez. This item ha...
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$449.00Ken Griffey Jr. & Ken Griffey Sr. Autographed Official MLB Baseball Seattle Mariners "Back To Back HR 9/14/90" Beckett BAS Witness
This is an Official MLB Baseball that has been hand signed by Ken Griffey Jr. and Ken Griffey Sr. This item was inscribed "Back To Back HR 9/14/90....
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$299.00Ken Griffey Jr. & Sr. Autographed 1991 Upper Deck Card #572 Seattle Mariners Auto Grade Gem Mint 10 Beckett BAS Stock #216632
This is a 1991 Upper Deck Card #572 that has been hand signed by Ken Griffey Jr. & Sr. The condition of the signature was graded a Gem Mint 10 ...
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$699.00Seattle Mariners Ken Griffey Jr. Autographed Red Authentic Mitchell & Ness 1997 All Star Game Jersey Size XL Jackie Robinson Patch Beckett BAS Witness Stock #212470
This is a Red Authentic Mitchell & Ness Seattle Mariners 1997 All Star Game Jersey that has been hand signed by Ken Griffey Jr. This jersey is ...
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$399.00Ken Griffey Jr. Autographed Official MLB Baseball Seattle Mariners "HOF 16" Beckett BAS Witness Stock #212463
This is an Official MLB Baseball that has been hand signed by Ken Griffey Jr. This item was inscribed "HOF 16." This item has been witnessed and ce...
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$499.00Ken Griffey Jr. Autographed Official MLB Baseball Seattle Mariners "MLB Debut 4-3-89" Beckett BAS Witness Stock #212459
This is an Official MLB Baseball that has been hand signed by Ken Griffey Jr. This item was inscribed "MLB Debut 4-3-89." This item has been witnes...
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$799.00Seattle Mariners Ken Griffey Jr. Autographed White Nike Cooperstown Edition Jersey Retirement Patch Size XXL Beckett BAS QR Stock #206021
This is a White Nike Seattle Mariners Cooperstown Edition Jersey that has been hand signed by Ken Griffey Jr. This jersey is Size XXL with the Reti...
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$249.00Ken Griffey Jr. Autographed 3x5 Index Card Seattle Mariners Beckett BAS Stock #200227
This is a 3x5 Index Card that has been hand signed by Ken Griffey Jr. It has been certified authentic by Beckett Authentication Services (BAS) and ...
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$299.00Ken Griffey Jr. Autographed 1987 International Header Rookie Card Bellingham Mariners Auto Grade Gem Mint 10 Beckett BAS
This is a 1987 International Header Rookie Card that has been hand signed by Ken Griffey Jr. The condition of the signature was graded a Gem Mint 1...
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$699.00Cincinnati Reds Ken Griffey Jr. Autographed Red Authentic Mitchell & Ness Jersey Beckett BAS QR #2W237881
This is a Red Authentic Mitchell and Ness Cincinnati Reds Jersey that has been hand signed by Ken Griffey Jr. The jersey is Size 48. This item has ...
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$749.00Seattle Mariners Ken Griffey Jr. Autographed Black Nike Jersey "A.C.T. & 10X GG" Beckett BAS QR #1W448994
This is a Black Nike Seattle Mariners Jersey that has been hand signed by Ken Griffey Jr. This item was inscribed "A.C.T. and 10X GG." There is an ...
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$699.00Seattle Mariners Ken Griffey Jr. Autographed Black Nike Jersey "MVP 97" Beckett BAS QR #1W448995
This is a Black Nike Seattle Mariners Jersey that has been hand signed by Ken Griffey Jr. This item was inscribed "MVP 97." There is an imperfectio...
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$699.00Seattle Mariners Ken Griffey Jr. Autographed Black Nike Jersey "13X AS" Beckett BAS QR #1W448998
This is a Black Nike Seattle Mariners Jersey that has been hand signed by Ken Griffey Jr. This item was inscribed "13X AS." There is an imperfectio...
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$749.00Seattle Mariners Ken Griffey Jr. Autographed Black Nike Jersey "Seattle Mariners, 1989-2000 2009-2010" Beckett BAS QR #1W448997
This is a Black Nike Seattle Mariners Jersey that has been hand signed by Ken Griffey Jr. This item was inscribed "Seattle Mariners, 1989-2000 2009...
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$399.00Ken Griffey Jr. Autographed Framed 16x20 Photo Seattle Mariners Swing Beckett BAS QR
This is a Framed 16x20 Photo, approximately 24x28 with the frame, that has been hand signed by Ken Griffey Jr. This item has been certified authent...
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$699.00Seattle Mariners Ken Griffey Jr. Autographed Black Nike Jersey Size L "HOF 16" Beckett BAS Witness
This is a Black Nike Seattle Mariners Jersey that has been hand signed by Ken Griffey Jr. This jersey is Size L. This item was inscribed "HOF 16." ...
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$799.00Seattle Mariners Ken Griffey Jr. Autographed Cream Nike 2023 All Star Game Patch Jersey Size XL "HOF 16" Beckett BAS Witness
This is a Cream Nike 2023 All Star Game Patch Seattle Mariners Jersey that has been hand signed by Ken Griffey Jr. This jersey is Size XL. This ite...
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$799.00Seattle Mariners Ken Griffey Jr. Autographed Cream Nike 2023 All Star Game Patch Jersey Size L "HOF 16" Beckett BAS Witness
This is a Cream Nike 2023 All Star Game Patch Seattle Mariners Jersey that has been hand signed by Ken Griffey Jr. This jersey is Size L. This item...
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$699.00Seattle Mariners Ken Griffey Jr. Autographed Teal Nike Jersey Size XXL Beckett BAS Witness
This is a Teal Nike Seattle Mariners Jersey that has been hand signed by Ken Griffey Jr. This jersey is Size XXL. This item has been witnessed and ...
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Shop Authentic Ken Griffey Jr Signed Baseball Memorabilia
Ken Griffey Jr signed baseball memorabilia remains one of the most collectible categories in baseball history. Known for his iconic swing, Hall of Fame career, and lasting impact on the game, Griffey collectibles continue to be highly sought after by fans and memorabilia collectors alike.
Our collection includes Ken Griffey Jr autographed baseballs, signed jerseys, and other authenticated memorabilia from throughout his legendary career. Whether you are building a display or adding to your collection, these collectibles capture memorable moments from one of baseball’s greatest players.
Certified Ken Griffey Jr Autographed Collectibles
Every item in our inventory is authenticated by trusted third-party services such as PSA, JSA, or Beckett and includes a Certificate of Authenticity. This ensures that each autograph is genuine and protects the long-term value of your collectible.
Browse our selection of Ken Griffey Jr signed baseball memorabilia today to discover authentic autographed baseballs, signed jerseys, and rare collectibles backed by RSA.