O'Day is a surname of Irish origin. Notable people with the surname include:
- Alan O'Day (1940–2013), American singer-songwriter
- Anita O'Day (1919–2006), American jazz singer
- Aubrey O'Day (born 1984), American singer, dancer, actress, songwriter, fashion designer, former member of the group Danity Kane
- Caroline Love Goodwin O'Day (1875–1943), American politician
- Constance O'Day-Flannery, an American author of romance novels
- Daniel O'Day, one of northwestern Pennsylvania's earliest independent refiners to be brought into John D. Rockefeller's Standard Oil Company
- Daniel O'Day, Chairman and Chief Executive Officer, Gilead Sciences
- Darren O'Day (born 1982), Major League Baseball relief pitcher for the Atlanta Braves. Real last name Odachowski, not Irish.
- George O'Day (1923–1987), American sailor, Olympic champion and boat designer
- Hank O'Day (1859–1935), American right-handed pitcher, umpire and manager in Major League Baseball
- Jeremy O'Day (born 1974), offensive lineman for the Saskatchewan Roughriders of the Canadian Football League
- John O'Day (1856–1933), American politician
- Marcus O'Day (1897–1961), American physicist
- Molly O'Day (1911–1998), American film actress
- Molly O'Day (singer) (1923–1987), American country music vocalist in the late 1940s
- Nell O'Day (1909–1989), accomplished equestrian and B-movie actress of the 1930s and 1940s
- Pat O'Day (born 1934), Pacific Northwest broadcaster and promoter
See also edit
- Break O'Day Council, a Local Government Area of Tasmania, encompassing the northern part of the states east coast
- Javits-Wagner-O'Day Act or JWOD, 41 U.S.C. § 46 et seq
- O'Day Corp., a U.S. sailboat builder of the following sailboats:
- O'Day 23
- O'Day 25
- O'Day 28
- O'Day 30
- O'Day Day Sailer
- O'Day Mariner, a long sailboat based upon the hull of the Rhodes 19
- O'Day (crater), a prominent lunar impact crater that is located on the far side of the Moon
- O'Dea, Irish surname from which O'Day is derived
- Peep o' Day Boys, a Protestant secret association in 18th century Ireland, a precursor of the Orange Order
This page lists people with the surname O'Day.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.