The 1992 Seattle Mariners season was their 16th since the franchise creation. The team finished seventh (last) in the American League West with a record of 64–98 (.395). After a franchise-best 83 wins the previous season, the Mariners finished with nineteen fewer, the largest one-year decline in team history. Ownership changed in July, and first-year manager Bill Plummer was fired after the season, succeeded by Lou Piniella in November for 1993.