May-day

May-day
SireLamplighter
GrandsireMerlin
DamRubens mare
DamsireRubens
SexFilly
Foaled1831
CountryUnited Kingdom
ColourChestnut
BreederRobert Wilson, 9th Baron Berners
OwnerRobert Wilson, 9th Baron Berners
TrainerJ. Doe
Record3:1-0-0
Major wins
1000 Guineas (1834)

May-day (1831 30 May 1834) was a British Thoroughbred racehorse who won the classic 1000 Guineas at Newmarket Racecourse in 1834. On her only subsequent start she was fatally injured in the Oaks Stakes at Epsom.