No.
Safeco field
They play in Quest Field. Quest Field is also shared with the Seattle Seahawks (football) during the last bit of the Sounders' soccer season.
Safeco Field
Safeco Field
It is the park where the Mariners play home games.
Yes. They play in Safeco Field in Seattle, WA
Dustin Ackley debuted on June 17, 2011, playing for the Seattle Mariners at Safeco Field; he played his final game on September 29, 2013, playing for the Seattle Mariners at Safeco Field.
Abraham Almonte debuted on August 30, 2013, playing for the Seattle Mariners at Safeco Field; he played his final game on September 29, 2013, playing for the Seattle Mariners at Safeco Field.
Brandon Bantz debuted on June 8, 2013, playing for the Seattle Mariners at Safeco Field; he played his final game on June 8, 2013, playing for the Seattle Mariners at Safeco Field.
Blake Beavan debuted on July 3, 2011, playing for the Seattle Mariners at Safeco Field; he played his final game on July 9, 2013, playing for the Seattle Mariners at Safeco Field.
Jaime Bubela debuted on September 15, 2005, playing for the Seattle Mariners at Safeco Field; he played his final game on October 2, 2005, playing for the Seattle Mariners at Safeco Field.
Carter Capps debuted on August 3, 2012, playing for the Seattle Mariners at Safeco Field; he played his final game on September 29, 2013, playing for the Seattle Mariners at Safeco Field.