| Name | Sex | Colour | Registration | Foaling Date | Reg Status | Competition Status |
|---|---|---|---|---|---|---|
| WILLETT | Gelding | GREY | 54488 | Stud Book | Not Eligible | |
| WILLETTLE RISDON | Stallion | GREY | 48601 | 28/02/1975 | Stud Book | Not Eligible |
| WILLETTLE WHITWOOD | Gelding | BAY | 57739 | 04/12/1971 | Stud Book | Deceased |
| WILLETTLLE SCHMETTERLING | Mare | GREY | 63833 | 26/12/1978 | Stud Book | Not Eligible |
| WILLETTS TWINKLE | Mare | BAY | 52034 | 02/08/1975 | Stud Book | Not Eligible |
| WILLETTS WASP - HSH | Mare | BAY | 45470 | 17/08/1975 | Stud Book | Not Eligible |
| WILLFULL JAY ARE | Mare | CHESTNUT | C1-158401 | 20/10/1999 | First Cross | Eligible |
| WILLGRAH PETA | Mare | GREY | 52085 | 12/02/1975 | Stud Book | Not Eligible |
| WILLHAVEN | Stallion | CHESTNUT | 30890 | 16/11/1970 | Stud Book | Deceased |
| WILLHAVEN ELLITE TECH - HSH | Gelding | BROWN | 238823 | 27/10/2015 | Stud Book | Not Eligible |
| WILLHAVEN MATAVOI | Gelding | BAY | C2-191723 | 11/12/2009 | Second Cross | Eligible |
| WILLHEBLOOM - HSH | Stallion | BAY | 187617 | 08/10/2008 | Stud Book | Not Eligible |
| WILLHOWIND ANGEL | Mare | BROWN | 55668 | Stud Book | Not Eligible | |
| WILLHOWIND HIGH MOON | Mare | BROWN | F29607 | 01/10/1980 | Foal Recorded | Not Eligible |
| WILLHOWIND MOONLIGHT | Mare | BAY | F29606 | 25/09/1980 | Foal Recorded | Not Eligible |
| WILLI WILLI EVE | Mare | GREY | 9521 | Stud Book | Deceased | |
| WILLIAM | Gelding | BROWN | 24909 | Stud Book | Not Eligible | |
| WILLIAM BONNE - HSH | Stallion | CHESTNUT | F20775 | 20/11/1979 | Foal Recorded | Not Eligible |
| WILLIAM BONNY | Gelding | CHESTNUT | C1-126037 | 13/10/1994 | First Cross | Not Eligible |
| WILLIAM MCBRIDE | Stallion | BAY | 72908 | 04/11/1985 | Stud Book | Not Eligible |
| WILLIAM TELL | Gelding | CHESTNUT | 49781 | 12/09/1975 | Stud Book | Not Eligible |
| WILLIAM THE CONQUEROR - HSH | Stallion | CHESTNUT | 1388 | 01/09/1970 | Stud Book | Deceased |
| WILLIAM TWO | Gelding | BROWN | 64442 | 01/01/1979 | Stud Book | Not Eligible |
| WILLIAM WALLACE | Gelding | PALOMINO | 252732 | 02/11/2017 | Stud Book | Eligible |
| WILLIAMBURY MAVIS | Mare | BAY | 18768 | Stud Book | Deceased | |
| WILLIAMPARK KOKODA | Gelding | CHESTNUT/PIED | 191571 | 06/10/2009 | Stud Book | Eligible |
| WILLIAMS BEAUTY QUEEN | Mare | BROWN | 29698 | 02/11/1974 | Stud Book | Not Eligible |
| WILLIAMS BESS | Mare | BLACK | 26160 | Stud Book | Deceased | |
| WILLIAMS BON WHISPER | Mare | BROWN | 24029 | 05/04/1972 | Stud Book | Deceased |
| WILLIAMS BOOTS | Gelding | BROWN | C2-265829 | 20/09/2022 | Second Cross | Eligible |
| WILLIAMS EL GAZON | Stallion | CHESTNUT | F17979 | 12/11/1978 | Foal Recorded | Not Eligible |
| WILLIAMS FANDANGO | Gelding | CHESTNUT | 72196 | 01/09/1963 | Stud Book | Deceased |
| WILLIAMS FAYE | Mare | GREY | 24594 | Stud Book | Not Eligible | |
| WILLIAMS FIONA | Mare | BAY | 9720 | 08/11/1970 | Stud Book | Deceased |
| WILLIAMS GAYE | Mare | CHESTNUT | 24591 | Stud Book | Not Eligible | |
| WILLIAMS GIFT | Mare | BAY | 7336 | 23/08/1968 | Stud Book | Deceased |
| WILLIAMS JOHN | Gelding | CHESTNUT | 15110 | Stud Book | Deceased | |
| WILLIAMS KAY | Mare | GREY | 24592 | Stud Book | Not Eligible | |
| WILLIAMS KITTY | Mare | CHESTNUT | 11338 | Stud Book | Deceased | |
| WILLIAMS LADYBIRD | Mare | CHESTNUT | 1636 | 01/08/1960 | Stud Book | Deceased |
| WILLIAMS LOCKETT | Mare | CHESTNUT | 21795 | 16/11/1968 | Stud Book | Deceased |
| WILLIAMS MAESTRO | Stallion | BROWN | F16944 | 14/11/1978 | Foal Recorded | Not Eligible |
| WILLIAMS MELODY | Mare | GREY | 19209 | 01/10/1969 | Stud Book | Deceased |
| WILLIAMS MYSTERY | Mare | CHESTNUT | 19208 | Stud Book | Deceased | |
| WILLIAMS PARK MITZI | Mare | BROWN | 32459 | 18/10/1971 | Stud Book | Deceased |
| WILLIAMS QUITE WHISPER | Mare | BROWN | 14959 | Stud Book | Deceased | |
| WILLIAMS ROMONA | Mare | BLACK | 9753 | 01/10/1969 | Stud Book | Deceased |
| WILLIAMS TEENA | Mare | BAY | 24593 | 01/03/1972 | Stud Book | Deceased |
| WILLIAMS WAIF | Mare | BAY | 29871 | 17/09/1964 | Stud Book | Deceased |
| WILLIAMS WAY GUINENERE | Mare | BROWN | 32307 | Stud Book | Not Eligible | |
| WILLIAMS WAY HONOUR | Mare | CHESTNUT | 32309 | 01/01/1967 | Stud Book | Deceased |
| WILLIAMS WAY SCARLET | Mare | BROWN | 32308 | 01/08/1965 | Stud Book | Deceased |
| WILLIAMS WEE WENDY ANN | Mare | DUN | 28368 | 02/12/1973 | Stud Book | Not Eligible |
| WILLIAMSON ONE OFF TRADE | Gelding | BAY | C1-252368 | 18/11/2017 | First Cross | Not Eligible |
| WILLIAMSONS BLACK PEARL | Mare | BROWN/BLACK | 266032 | 30/11/2022 | Stud Book | Eligible |
| WILLIAMSONS BOBBY | Gelding | BAY | 161631 | 15/09/2002 | Stud Book | Deceased |
| WILLIAMSONS CHILL FACTOR | Mare | CHESTNUT | C2-246524 | 05/11/2011 | Second Cross | Eligible |
| WILLIAMSONS CHILL OUT | Gelding | CHESTNUT | 246525 | 24/12/2016 | Stud Book | Eligible |
| WILLIAMSONS COBBER - HSH | Gelding | BAY | C2-248092 | 10/02/2017 | Second Cross | Eligible |
| WILLIAMSONS CONFLICT - HSH | Gelding | BLACK | 266031 | 11/12/2021 | Stud Book | Eligible |
| WILLIAMSONS DELTA | Mare | BAY | C1-177425 | 01/08/1999 | First Cross | Eligible |
| WILLIAMSONS DELTAS ECHO | Mare | BROWN | C2-249157 | 11/11/2009 | Second Cross | Eligible |
| WILLIAMSONS DRY TIMES | Gelding | CHESTNUT | 177424 | 25/10/2002 | Stud Book | Eligible |
| WILLIAMSONS DYNASTY | Mare | BAY | 269995 | 18/10/2021 | Stud Book | Eligible |
| WILLIAMSONS ECHOETTE - HSH | Mare | GREY | C2-248927 | 26/10/2010 | Second Cross | Eligible |
| WILLIAMSONS GLAMOURESS | Mare | BAY | 252716 | 18/12/2015 | Stud Book | Eligible |
| WILLIAMSONS GLEAM | Mare | BROWN | 267490 | 21/12/2021 | Stud Book | Eligible |
| WILLIAMSONS GLIMMER | Mare | BAY | 249158 | 22/10/2010 | Stud Book | Eligible |
| WILLIAMSONS GLITTER | Mare | CHESTNUT | 253965 | 28/11/2019 | Stud Book | Eligible |
| WILLIAMSONS IMITATION - HSH | Mare | BLACK/GREY | C2-253966 | 27/12/2019 | Second Cross | Eligible |
| WILLIAMSONS JEWEL | Mare | BUCKSKIN | R-256895 | 27/02/2018 | Base Registry | Not Eligible |
| WILLIAMSONS JUST A MINUTE | Gelding | BROWN/BLACK | C2-237901 | 19/10/2008 | Second Cross | Not Eligible |
| WILLIAMSONS JUST A PIGEON | Mare | BROWN/DUN | C2-248928 | 08/12/2010 | Second Cross | Eligible |
| WILLIAMSONS JUST AS WELL | Mare | BAY | C2-177423 | 19/12/2006 | Second Cross | Eligible |
| WILLIAMSONS JUST DID IT | Mare | BROWN/DUN | C2-239343 | 21/10/2010 | Second Cross | Not Eligible |
| WILLIAMSONS MAGIC ECHO | Gelding | BROWN | 264589 | 27/11/2022 | Stud Book | Eligible |
| WILLIAMSONS MANDY - HSH | Mare | BAY | C1-177426 | 14/09/1997 | First Cross | Eligible |
| WILLIAMSONS REMEMBRANCE | Mare | BROWN | C2-251006 | 11/11/2013 | Second Cross | Eligible |
| WILLIAMSONS REPLICA - HSH | Gelding | GREY | 257673 | 26/11/2020 | Stud Book | Eligible |
| WILLIAMSONS SCARLET | Mare | BLACK | C2-187863 | 24/12/2000 | Second Cross | Eligible |
| WILLIAMSONS TIMEPIECE | Gelding | CHESTNUT | C2-252369 | 20/10/2015 | Second Cross | Not Eligible |
| WILLIAMSONS TOPKNOT | Gelding | BAY | C1-264590 | 02/01/2014 | First Cross | Not Eligible |
| WILLIAMSONS VIXON | Mare | BROWN | C2-241949 | 01/12/2012 | Second Cross | Eligible |
| WILLIE DO | Gelding | BROWN | 11171 | Stud Book | Deceased | |
| WILLIE NELSON | Gelding | BAY | SM-250200 | 22/11/1980 | Special Merit - Stud Book | Not Eligible |
| WILLIE WIT | Stallion | BROWN | F34599 | 21/11/1982 | Foal Recorded | Not Eligible |
| WILLIES PLAYBOY | Stallion | CHESTNUT | 63837 | 01/01/1979 | Stud Book | Not Eligible |
| WILLINDA | Mare | BAY | 130418 | 12/09/1996 | Stud Book | Eligible |
| WILLING AND ABLE | Gelding | GREY | 105425 | 10/08/1987 | Stud Book | Not Eligible |
| WILLING BOY | Gelding | BROWN | 67670 | 07/12/1977 | Stud Book | Not Eligible |
| WILLING MONDO | Gelding | BAY | C1-140350 | 05/01/1992 | First Cross | Deceased |
| WILLING SPIRIT | Mare | BLACK | 76019 | 07/11/1983 | Stud Book | Not Eligible |
| WILLINGA BLACKBERRY | Mare | BLACK | C1-266661 | 29/11/2023 | First Cross | Not Eligible |
| WILLINGA CLASSY REYVON | Mare | BAY/BROWN | C1-254498 | 02/10/2019 | First Cross | Not Eligible |
| WILLINGA CV ABLE | Gelding | BAY | R-266449 | 17/10/2023 | Base Registry | Eligible |
| WILLINGA CV BESSY | Mare | BAY | C1-265441 | 14/11/2022 | First Cross | Eligible |
| WILLINGA CV CLEOPATRA | Mare | CHESTNUT | C1-266450 | 31/10/2023 | First Cross | Not Eligible |
| WILLINGA CV DANCER | Mare | CHESTNUT | C1-266448 | 28/10/2023 | First Cross | Not Eligible |
| WILLINGA CV JULIUS | Gelding | BAY | R-259418 | 17/01/2022 | Base Registry | Eligible |
| WILLINGA CV MABELS PLAY | Mare | BAY | R-259403 | 10/12/2021 | Base Registry | Not Eligible |