Day Star

{{Infobox racehorse

| horsename = Day Star

| sire = Star Davis

| grandsire = Glencoe

| dam = Squeeze-'em

| damsire = Lexington

| sex = Stallion

| foaled = 1875

| country = United States

| colour = Chestnut

| breeder = J. M. Clay

| owner = Thomas J. Nichols

| trainer = Lee Paul

| record = 42: 11-7-5

| earnings = $4,050

| race = Blue Ribbon Stakes (1878)
Kentucky Derby (1878)

| awards =

| honours =

| updated=

}}

Day Star (1875–1893) was the winner of the 4th annual Kentucky Derby held at Churchill Downs on May 21, 1878. He was a chestnut colt that was foaled in Kentucky and was sired by Star Davis (by the successful Glencoe). His dam was Squeeze-'em who was sired by Lexington, a foundation sire of many modern Thoroughbred lineages.

Day Star won the Derby by two lengths in an official time of 2:37.25, beating the race record set by Aristides in 1875, and winning a total of $4,050.{{Cite web |url=http://www.thoroughbredchampions.com/library/kyderby.htm |title=Thoroughbred Champions -- Championing the Horse & the Sport |access-date=2009-05-04 |archive-url=https://web.archive.org/web/20090414053812/http://www.thoroughbredchampions.com/library/kyderby.htm |archive-date=2009-04-14 |url-status=dead }}

In his career, he had 42 starts, 11 wins, 7 places and 5 shows.Chew, Peter, The Kentucky Derby: The First 100 Years, Houghton Mifflin Co., Boston, 1974

A 1910 Daily Racing Form article states that Day Star was sold after his racing career and stood at stud on a western farm, dying at the age of 18 years in 1893.[http://kdl.kyvl.org/cgi/t/text/pageviewer-idx?c=drf1910s;cc=drf1910s;g=drf;xc=1;q1=manuel;op2=and;op3=and;rgn=articles;idno=drf1910051901;didno=drf1910051901;view=pdf;seq=2_5;node=drf1910051901%3A2.5;passterms=1 Daily Racing Form. "Careers of Kentucky Derby winners." May 19, 1910.]{{Dead link|date=July 2019 |bot=InternetArchiveBot |fix-attempted=yes }}