Active: 1958 – 1989
Founded by famed Americas Cup sailor and olympic medalist George O'Day. In the beginning George O'Day Associates was only a distributor for several brands of small Sailboats. Some were produced by Fairey Marine of England and Marscot Plastics in the USA. (O'Day took over Marscot in 1958 to build the RHODES 19.) Soon he became involved in producing his own line of boats. Among the most successful projects was in commissioning Uffa Fox to design the DAYSAILER in 1969. Eventually, more than 12000 of these were sold. O'Day sold his company to the conglomerate Bangor Punta (later Lear Siegler) in 1966. For a number of years, O'Day Corp. was the largest producer of sailboats in the US.
Manufacturers ID (>1972): XDY.
| Name | LOA (ft) | First Built | Last Built | Rig |
|---|---|---|---|---|
| 7/11 (O'DAY) | 7.92 | 1961 | 1970 | Cat (unstayed) |
| ALBACORE | 15 | 1954 | — | Fractional Sloop |
| CADET (INT) | 10.56 | 1947 | — | Fractional Sloop |
| CAL 39 (HUNT/O'DAY) | 39 | 1988 | 1997 | Masthead Sloop |
| DAYSAILER | 16.75 | 1956 | — | Fractional Sloop |
| DAYSAILER II | 16.75 | 1971 | — | Fractional Sloop |
| DOLPHIN 24 (S&S) | 24.16 | 1959 | 1967 | Masthead Sloop |
| DUCKLING | 9 | 1952 | — | Cat (Marconi) |
| FLYING SAUCER (O'DAY) | 15 | 1966 | 1970 | Fractional Sloop |
| GANNET 14 | 14 | 1959 | 1964 | Fractional Sloop |
| INTERCLUB (USA) | 11.5 | 1946 | — | Cat (Marconi) |
| JAVELIN 14 (FOX) | 14 | 1960 | — | Fractional Sloop |
| JOLLYBOAT | 18 | 1950 | — | Fractional Sloop |
| KITTEN (O'DAY) | 10.16 | 1962 | 1965 | Lateen |
| MARINER 19 CB | 19.16 | 1962 | — | Fractional Sloop |
| MARINER 19 FK | 19.16 | 1962 | — | Fractional Sloop |
| O'DAY 12 | 12.33 | 1975 | 1980 | Cat (unstayed) |
| O'DAY 14 | 13.67 | 1985 | — | Fractional Sloop |
| O'DAY 15-1 | 14.92 | 1970 | 1974 | Fractional Sloop |
| O'DAY 15-2 | 14.92 | 1981 | 1983 | Fractional Sloop |
| O'DAY 19 | 19 | 1979 | — | Fractional Sloop |
| O'DAY 192 | 18.58 | 1984 | 1997 | Fractional Sloop |
| O'DAY 20 | 19.58 | 1973 | 1979 | Masthead Sloop |
| O'DAY 22 | 21.67 | 1972 | 1983 | Fractional Sloop |
| O'DAY 22 MH | 21.67 | 1973 | 1980 | Masthead Sloop |
| O'DAY 222 | 21.75 | 1984 | 1988 | Fractional Sloop |
| O'DAY 23-1 (LIFT TOP) | 23 | 1972 | — | Masthead Sloop |
| O'DAY 23-2 | 22.75 | 1978 | 1984 | Masthead Sloop |
| O'DAY 240 | 24.58 | 1988 | 1989 | Masthead Sloop |
| O'DAY 25 | 24.83 | 1975 | 1984 | Masthead Sloop |
| O'DAY 250 | 24.58 | 1996 | — | Masthead Sloop |
| O'DAY 26 | 25.7 | 1983 | 1985 | Masthead Sloop |
| O'DAY 27 | 27 | 1972 | 1979 | Masthead Sloop |
| O'DAY 272 | 26.92 | 1985 | 1989 | Masthead Sloop |
| O'DAY 28 | 28.25 | 1978 | 1986 | Masthead Sloop |
| O'DAY 280 | 28.96 | 1988 | 1989 | Masthead Sloop |
| O'DAY 290 | 28.25 | 1989 | 1990 | Masthead Sloop |
| O'DAY 30 | 29.92 | 1977 | 1984 | Masthead Sloop |
| O'DAY 302 | 29.58 | 1988 | — | Masthead Sloop |
| O'DAY 31 | 30.12 | 1985 | 1988 | Masthead Sloop |
| O'DAY 32 | 31.58 | 1975 | 1979 | Masthead Sloop |
| O'DAY 32 KETCH | 31.58 | 1975 | 1979 | Masthead Ketch |
| O'DAY 322 | 32.08 | 1986 | 1989 | Masthead Sloop |
| O'DAY 34 | 34 | 1980 | 1984 | Masthead Sloop |
| O'DAY 35 | 35 | 1984 | 1989 | Masthead Sloop |
| O'DAY 37 | 37 | 1977 | 1985 | Masthead Sloop |
| O'DAY 39 | 38.58 | 1982 | 1985 | Masthead Sloop |
| O'DAY 40 | 39.58 | 1986 | — | Masthead Sloop |
| OSPRAY (O'DAY) | 15.67 | 1960 | 1968 | Fractional Sloop |
| OUTLAW 26 (O'DAY ) | 26 | 1965 | 1968 | Masthead Sloop |
| RAVEN (USA) | 24.25 | 1949 | — | Fractional Sloop |
| RHODES 19 | 19.17 | 1959 | — | Fractional Sloop |
| RHODES 19 CB | 19.17 | 1959 | — | Fractional Sloop |
| SPRITE 10 (O'DAY) | 10.16 | 1959 | — | Fractional Sloop |
| SUPER SPRITE 10 (O'DAY) | 10.16 | 1960 | — | Fractional Sloop |
| SUPER SWIFT (O'DAY) | 12.67 | 1966 | — | Lateen |
| SWIFT (O'DAY) | 10.33 | 1964 | 1972 | Lateen |
| TEMPEST 23 (O'DAY) | 23.17 | 1964 | 1968 | Masthead Sloop |
| TEMPEST (INTERNATIONAL) | 22 | 1965 | — | Fractional Sloop |
| WIDGEON 12 (O'DAY) | 12.33 | 1964 | — | Fractional Sloop |
| WILDFIRE | 16.75 | 1968 | — | Fractional Sloop |
| WOOD-PUSSY | 13.5 | 1943 | — | Cat (Marconi) |
| YNGLING | 20.83 | 1967 | — | Fractional Sloop |