:Jack Brennan (baseball)

{{Short description|American baseball player (1862–1914)}}

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

{{Infobox baseball biography

|name=Jack Brennan

|position=Catcher

|image=

|bats=Right

|throws=Right

|birth_date={{Birth date|1862|9|15|mf=y}}

|birth_place=St. Louis, Missouri

|death_date={{death date and age|1914|3|24|1862|9|15}}

|death_place=Koch, Missouri

|debutleague = MLB

|debutdate=April 20

|debutyear={{By|1884}}

|debutteam=St. Louis Maroons

|finalleague = MLB

|finaldate=October 4

|finalyear={{By|1890}}

|finalteam=Cleveland Infants

|statleague = MLB

|stat1label=Batting average

|stat1value=.220

|stat2label=Home runs

|stat2value=0

|stat3label=Runs batted in

|stat3value=48

|teams=

• St. Louis Maroons (1884–85)
• Kansas City Cowboys (1888)
• Philadelphia Athletics (American Association) (1889)
• Cleveland Infants (1890)

}}

Jack Brennan (born as Gottlieb Doering) was an American professional baseball catcher in the late 19th century. In his five-year career he played with the St. Louis Maroons, Kansas City Cowboys of the American Association, Philadelphia Athletics of the AA, and the Cleveland Infants.

Brennan was born Gottlieb Doering in St. Louis, Missouri in 1862. After his playing career ended in {{By|1890}}, he continued to work as an umpire in the St. Louis Area.{{cn|date=November 2022}}