Collection: Seattle Mariners Autographed Memorabilia

Seattle Mariners Autographed Memorabilia & Signed Baseball Collectibles

Celebrate the history of Pacific Northwest baseball with Seattle Mariners autographed memorabilia from Gameday Sports & Memorabilia.

From Ken Griffey Jr.'s unforgettable swing to Ichiro Suzuki's remarkable hitting achievements, the Seattle Mariners have been home to some of Major League Baseball's most recognizable stars.

Our collection brings together authenticated signed baseballs, autographed jerseys, collectible bats, photographs, and other Mariners memorabilia celebrating the players and moments that have shaped the franchise.

Whether you're building a Seattle Mariners memorabilia display, shopping for a lifelong fan, or adding a Hall of Fame autograph to your collection, explore the available products above to find something special.

Seattle Mariners Legends & Fan Favorites

The Mariners' history includes outstanding hitters, dominant pitchers, and beloved players who helped establish Seattle as a memorable baseball city.

Collectors frequently seek autographs from:

• Ken Griffey Jr. — Hall of Fame center fielder, 1997 American League MVP, and one of the most recognizable players in Mariners history.
• Ichiro Suzuki — Hall of Fame outfielder, 2001 AL MVP and Rookie of the Year, and a member of MLB's 3,000-hit club.
• Edgar Martinez — Hall of Fame designated hitter, two-time AL batting champion, and one of Seattle's most celebrated franchise players.
• Randy Johnson — Hall of Fame pitcher whose powerful left-handed delivery helped define an important era of Mariners baseball.
• Félix Hernández — Six-time All-Star, 2010 AL Cy Young Award winner, and the pitcher behind Seattle's 2012 perfect game.
• Julio Rodríguez — Dynamic Mariners outfielder and 2022 American League Rookie of the Year.
• Other Seattle favorites — Players whose contributions remain part of Mariners history.

Product availability varies, and not every featured player or memorabilia type will be represented at all times.

Ken Griffey Jr. Autographed Seattle Mariners Memorabilia

Few players are more closely associated with the Seattle Mariners than Ken Griffey Jr.

Known as "The Kid," Griffey became a baseball icon through his effortless swing, spectacular defense, and signature backward cap.

His years in Seattle helped establish the Mariners as one of baseball's most exciting teams during the 1990s.

Griffey's career accomplishments include 630 home runs, 13 All-Star selections, 10 Gold Gloves, and induction into the National Baseball Hall of Fame in 2016.

Collectors can explore Ken Griffey Jr. signed baseballs, autographed jerseys, baseball bats, and photographs, depending on availability.

A signed Mariners jersey displaying his famous No. 24 makes a recognizable centerpiece for a Seattle-themed sports room.

Autographed bats and baseballs offer additional ways to celebrate one of the greatest center fielders in MLB history.

Explore our Ken Griffey Jr. Autographed Memorabilia collection for more options.

Ichiro Suzuki Autographed Seattle Mariners Collectibles

Ichiro Suzuki autographed memorabilia celebrates one of baseball's most accomplished international stars.

Ichiro made an immediate impact when he joined Seattle in 2001, winning both the American League Rookie of the Year and Most Valuable Player awards in his debut MLB season.

His precision hitting, speed, and exceptional outfield defense made him a defining figure in Mariners history.

In 2004, Ichiro recorded 262 hits, setting the MLB single-season record. He later surpassed 3,000 career MLB hits and was inducted into the National Baseball Hall of Fame in 2025.

Collectors may find:

• Ichiro autographed Mariners jerseys
• Signed Mizuno baseball bats
• Official MLB autographed baseballs
• Signed photographs
• Bats featuring special career-statistic inscriptions
• Collectibles featuring Hall of Fame inscriptions

Some signed bats feature inscriptions such as "HOF 25," "#51," or career milestone statistics.

These details can make individual pieces especially meaningful to collectors, but inscriptions and authentication documentation vary by product.

Edgar Martinez Autographed Memorabilia

Edgar Martinez spent his entire 18-season Major League career with the Seattle Mariners and became one of the most respected hitters of his generation.

A seven-time All-Star and two-time American League batting champion, Martinez was inducted into the National Baseball Hall of Fame in 2019.

His famous double during the 1995 American League Division Series remains one of the defining moments in Mariners history.

Edgar Martinez autographed memorabilia may include:

• Signed Seattle Mariners jerseys
• Autographed Louisville Slugger bats
• Official MLB baseballs
• Signed photographs
• Collectibles featuring "HOF 19" inscriptions
• Items celebrating his 1992 and 1995 batting titles

For longtime Seattle baseball fans, a Martinez autograph commemorates both individual excellence and a memorable chapter in franchise history.

Seattle Mariners Autographed Baseballs

A Seattle Mariners signed baseball is a classic addition to any MLB memorabilia collection.

Autographed baseballs offer a familiar way to display signatures from Hall of Famers, former stars, and current players.

Collectors may choose between official MLB baseballs, commemorative baseballs, and specialty signed designs.

Some baseballs include additional inscriptions commemorating career achievements, Hall of Fame inductions, or important milestones.

When shopping for a signed Mariners baseball, consider:

• The player and significance of the autograph
• Whether the baseball is an official MLB or specialty model
• Signature placement and ink color
• Authentication provider and documentation
• Whether the item includes a special inscription
• The baseball's overall condition

A clear acrylic baseball display case can help protect the signature while keeping the collectible visible.

Seattle Mariners Signed Jerseys

A Seattle Mariners autographed jersey makes an impressive display piece for fans who want to celebrate their favorite player.

Our assortment may include signed jerseys associated with Griffey, Ichiro, Martinez, and other Mariners stars.

Depending on availability, shoppers may find official Nike, Majestic, Mitchell & Ness, or custom-style jerseys.

Jerseys can differ in construction, licensing, size, and historical design.

Authentic, Replica & Custom Jerseys

An officially licensed jersey and a custom-style jersey can both feature genuine, authenticated player signatures.

The word authentic in a jersey's product description may refer to the garment model rather than the authentication of the autograph.

Likewise, a signed jersey should not be considered game-used or game-worn unless the individual product listing explicitly provides supporting documentation.

When selecting a Mariners signed jersey, review the garment details, autograph authentication, photographs, and included documentation.

Seattle Mariners Autographed Baseball Bats

An autographed Seattle Mariners baseball bat is a distinctive collectible that can serve as the centerpiece of a baseball memorabilia display.

Our assortment includes signed bats from Mariners legends such as Ken Griffey Jr., Ichiro Suzuki, and Edgar Martinez.

Depending on the item, collectors may find Louisville Slugger or Mizuno bats with natural wood, black, or other finishes.

Some signed bats feature additional inscriptions, including:

• Hall of Fame induction years
• Jersey numbers
• Career statistics
• Batting-title achievements
• Other player-specific milestones

Bat models may be described as player-model, pro-stock, or commemorative designs.

These terms do not automatically establish that a bat was used in a professional game.

Unless specifically documented otherwise, collectors should treat autographed bats as display memorabilia rather than game-used equipment.

Seattle Mariners Signed Photos & Display Collectibles

Autographed photographs offer another way to celebrate Seattle Mariners history.

A signed photograph can capture a memorable batting stance, pitching motion, defensive play, or career milestone.

Popular display options include:

• Signed 8x10 photographs
• Larger autographed action photos
• Framed Mariners memorabilia
• Signed baseballs displayed alongside photographs
• Autographed jerseys mounted in shadow boxes
• Signed bats displayed in protective cases

For a cohesive Mariners collection, consider arranging items by player, decade, or franchise milestone.

Protect autographs from prolonged direct sunlight, excessive moisture, and unnecessary handling.

Authenticating Seattle Mariners Autographs

Authentication is one of the most important considerations when purchasing signed baseball memorabilia.

Our Mariners products may feature authentication from recognized providers such as Beckett Authentication Services (BAS), JSA, Fanatics Authentic, MLB Authentication, PSA/DNA, or other documented sources.

The authentication provider varies by product.

Documentation may include:

• Tamper-evident holograms
• Certificates of Authenticity (COAs)
• Letters of Authenticity (LOAs)
• QR-code verification
• Online authentication records
• Signing-witness documentation

Not every product includes every form of documentation, and not every authenticator offers the same verification process.

Before purchasing, review the specific product listing to identify the authenticator and the documentation included.

Learn more through our Sports Memorabilia Authentication Guide.

Every autographed collectible sold by Gameday Sports & Memorabilia is also backed by our Lifetime Authenticity Guarantee, subject to its terms.

What Determines the Value of Mariners Autographed Memorabilia?

The value of Seattle Mariners autographed memorabilia depends on several factors.

These include:

• Player popularity: Hall of Fame legends and beloved franchise stars may attract significant collector interest.
• Item type: Signed baseballs, bats, jerseys, and framed displays appeal to different buyers.
• Authentication: Documentation from a recognized provider can support buyer confidence.
• Signature quality: Clarity, placement, and condition affect presentation.
• Special inscriptions: Hall of Fame years, career milestones, and jersey numbers can distinguish collectibles.
• Product condition: Preservation and display quality are important.
• Market demand: Collector preferences and comparable sales influence prices.

A Ken Griffey Jr. signed baseball may have a different market price from an Ichiro Suzuki autographed bat or an Edgar Martinez signed jersey.

The most appropriate collectible depends on your budget, interests, and available display space.

Sports memorabilia prices can fluctuate, and no autograph should be purchased with an expectation of guaranteed financial appreciation.

For additional guidance, visit our Sports Memorabilia Buying Guide.

Seattle Mariners Memorabilia Gifts

Seattle Mariners autographed collectibles make thoughtful gifts for baseball fans, longtime Seattle residents, and collectors of MLB history.

They are particularly well suited for:

• Birthdays and holidays
• Father's Day
• Retirement celebrations
• Seattle Mariners fan caves
• Home offices and sports rooms
• Hall of Fame memorabilia collections
• Special occasions for lifelong baseball fans

A signed baseball offers a compact display option, while a framed jersey or autographed bat can create a more prominent centerpiece.

Collectors who grew up watching the Mariners in the 1990s may particularly appreciate memorabilia associated with Griffey, Martinez, and the team's memorable postseason appearances.

Fans of the 2000s may gravitate toward Ichiro Suzuki and Félix Hernández, while newer collectors may prefer current-generation stars.

Shop Seattle Mariners Autographed Memorabilia with Confidence

At Gameday Sports & Memorabilia, we help baseball fans celebrate their favorite players and teams through authenticated sports collectibles.

Our Seattle Mariners collection includes signed baseballs, autographed jerseys, collectible bats, photographs, and other memorabilia, with styles and availability changing over time.

Every autographed collectible is backed by our Lifetime Authenticity Guarantee.

We also offer free U.S. shipping and 30-day returns.

Review individual product listings for authentication details, item specifications, and any included inscriptions.

Whether you're searching for a Ken Griffey Jr. signed Mariners jersey, an Ichiro Suzuki autographed bat, an Edgar Martinez signed baseball, or another piece of Seattle baseball history, explore the products above to find a collectible worth displaying.

Explore signed collectibles celebrating Seattle’s legendary outfielder in our Ichiro Suzuki autographed memorabilia collection.