Al Grenert

{{Infobox basketball biography

| name = Al Grenert

| image =

| image_size =

| caption =

| position = Guard / forward

| number =

| height_ft = 6

| height_in = 0

| weight_lb = 190

| birth_date = {{birth date|1919|7|8}}

| birth_place = Holyoke, Massachusetts

| death_date = {{death date and age|2002|8|9|1919|7|8}}

| death_place = Rockport, Maine

| nationality = American

| high_school = Holyoke (Holyoke, Massachusetts)

| college = NYU (1941–1942, 1944–1945)

| draft_year =

| career_start = 1945

| career_end = 1949

| years1 = 1945–1946

| team1 = Sheboygan Red Skins

| years2 = 1946–1948

| team2 = Tri-Cities Blackhawks

| years3 = 1947

| team3 = Birmingham Skyhawks

| years4 = 1947–1948

| team4 = Montgomery Rebels

| years5 = 1947–1948

| team5 = Utica Olympics

| cyears1 = 1949–1971

| cteam1 = Saint Anselm

| cyears2 = 1976–1984

| cteam2 = Nashua HS

| highlights =

}}

Albert Francis Grenert (July 8, 1919 – August 9, 2002) was an American professional basketball player and college coach.{{cite web| title =Albert Grenert NBL stats| work =basketball-reference.com| publisher =Sports Reference LLC| date = | url =https://www.basketball-reference.com/nbl/players/g/greneal01n.html| accessdate = March 31, 2019}} He played for the Sheboygan Red Skins and Tri-Cities Blackhawks in the National Basketball League, among other teams and leagues.{{cite web| title =Al Grenert| work =Peach Basket Society| publisher =| date =11 February 2016| url =http://peachbasketsociety.blogspot.com/2016/02/al-grenert.html| accessdate = March 31, 2019}}{{cite encyclopedia| title =Al Grenert| encyclopedia =Pro Basketball Encyclopedia| publisher =| date = | url =http://probasketballencyclopedia.com/player/al-grenert/| accessdate = March 31, 2019}} He played college basketball and baseball at New York University (NYU).

Grenert served in the U.S. Marine Corps during World War II. He also had a coaching career that lasted 30 seasons, spanning both college and high school levels.