Bill Mackey

{{Short description|American racing driver}}

{{Infobox F1 driver

| name = Bill Mackey

| birth_name = William Christopher Gretsinger, Jr.

| birth_date = {{birth date|1927|12|15}}

| birth_place = Dayton, Ohio, U.S.

| death_date = {{death date and age|1951|7|29|1927|12|15}}

| death_place = Winchester, Indiana, U.S.

| nationality = {{flagicon|USA}} American

| Years = {{F1|1951}}

| Team(s) = Stevens

| Races = 1

| Championships = 0

| Wins = 0

| Podiums = 0

| Points = 0

| Poles = 0

| Fastest laps = 0

| First race = 1951 Indianapolis 500

}}

Bill Mackey (December 15, 1927 – July 29, 1951) was an American racecar driver. His name at birth was William Christopher Gretsinger, Jr.

Mackey was killed while attempting to qualify for an AAA sprint car race at Funk's Speedway in Winchester, Indiana on July 29, 1951, a day which became known as "Black Sunday".{{cite news|title=Three Indianapolis race drivers killed|url=https://news.google.com/newspapers?id=k1ItAAAAIBAJ&pg=3264%2C4144114|newspaper=Reading Eagle|date=July 30, 1951}}{{cite news|title=Three ranking drivers killed in race crashes|url=https://news.google.com/newspapers?id=XdgjAAAAIBAJ&pg=2924%2C5526548|newspaper=The Milwaukee Journal|agency=Associated Press|date=July 30, 1951}}{{Dead link|date=July 2024 |bot=InternetArchiveBot |fix-attempted=yes }}