:Leon Carlson

{{short description|American baseball player (1895-1961)}}

{{Use mdy dates|date=July 2024}}

{{Infobox baseball biography

|name=Leon Carlson

|position=Pitcher

|image=

|bats=Right

|throws=Right

|birth_date={{Birth date|1895|2|17|mf=y}}

|birth_place=Jamestown, New York

|death_date={{death date and age|1961|9|15|1895|2|17}}

|death_place=Jamestown, New York

|debutleague = MLB

|debutdate=May 31

|debutyear={{Baseball year|1920}}

|debutteam=Washington Senators

|finalleague = MLB

|finaldate=June 15

|finalyear={{Baseball year|1920}}

|finalteam=Washington Senators

|statleague = MLB

|stat1label=Win–loss record

|stat1value=0–0

|stat2label=Strikeouts

|stat2value=3

|stat3label=Earned run average

|stat3value=3.65

|teams=

• Washington Senators (1920)

}}

Leon Alton Carlson (February 17, 1895 – September 15, 1961), nicknamed "Swede", was a professional baseball pitcher. He pitched in three games in Major League Baseball for the Washington Senators in 1920, all in relief.