| Name | Sex | Colour | Registration | Foaling Date | Reg Status | Competition Status |
|---|---|---|---|---|---|---|
| YOUTHAVALLEY SASSY LASS | Mare | CHESTNUT | 268227 | 04/11/2022 | Stud Book | Eligible |
| YOW YOW | Gelding | GREY | 11258 | Stud Book | Deceased | |
| YOWADA BELLS | Mare | BROWN | 21926 | Stud Book | Deceased | |
| YOWADA CHIEFTAIN - HSH | Stallion | BROWN | 231111 | 10/10/2010 | Stud Book | Deceased |
| YOWADA CLASS - HSH | Mare | BROWN | 174442 | 23/10/2004 | Stud Book | Eligible |
| YOWADA DANIELLE | Mare | BAY | C1-130712 | 01/08/1987 | First Cross | Deceased |
| YOWADA DECORUM | Gelding | BAY | 236468 | 08/08/2013 | Stud Book | Not Eligible |
| YOWADA ELOQUENT | Mare | BAY | 192563 | 12/08/2004 | Stud Book | Eligible |
| YOWADA FROLIC | Mare | BROWN | 9090 | Stud Book | Deceased | |
| YOWADA GRACE | Mare | BROWN/BLACK | 238150 | 01/08/2006 | Stud Book | Eligible |
| YOWADA JEMMA | Mare | BAY | 21924 | Stud Book | Deceased | |
| YOWADA KWIK STEP - HSH | Mare | BAY | 192564 | 26/10/2008 | Stud Book | Eligible |
| YOWADA LANTELL | Gelding | BROWN | 47934 | 11/10/1971 | Stud Book | Deceased |
| YOWADA LOOLA | Mare | BAY | 21925 | Stud Book | Deceased | |
| YOWADA MACHO MAN | Stallion | BROWN | F26213 | 16/11/1980 | Foal Recorded | Not Eligible |
| YOWADA MANDY | Mare | BROWN | 9091 | Stud Book | Deceased | |
| YOWADA MEDUSA | Mare | BAY | C2-192565 | 21/11/2005 | Second Cross | Eligible |
| YOWADA MINILYA MISS | Mare | BROWN | F16282 | 19/11/1978 | Foal Recorded | Not Eligible |
| YOWADA MISS MEEKA | Mare | BROWN | F12435 | 30/08/1977 | Foal Recorded | Not Eligible |
| YOWADA OLYMPIC HERITAGE | Mare | BAY | 36407 | 02/05/1971 | Stud Book | Deceased |
| YOWADA SAMBUCA | Gelding | BROWN/BLACK | 185213 | 19/03/2001 | Stud Book | Eligible |
| YOWADA SUGAR MAN | Gelding | BAY | C1-264277 | 25/09/2016 | First Cross | Eligible |
| YOWADA TIPTOP - HSH | Gelding | BAY | C1-261935 | 29/08/2014 | First Cross | Eligible |
| YOWADA VOGUE | Mare | BAY | 247940 | 04/09/2011 | Stud Book | Eligible |
| YOWANI PRINCE | Gelding | BAY | 62666 | 25/10/1979 | Stud Book | Not Eligible |
| YRELLE | Mare | CHESTNUT | 8574 | Stud Book | Deceased | |
| YTHANBRAE BLUE LADY | Mare | ROAN | 19352 | Stud Book | Deceased | |
| YTHANBRAE DI ANNA | Mare | CHESTNUT | 45934 | Stud Book | Not Eligible | |
| YTHANBRAE GARAVIN GIRL | Mare | CHESTNUT | 45935 | 01/01/1971 | Stud Book | Deceased |
| YTHANBRAE MISSY | Mare | GREY | 45936 | 01/01/1972 | Stud Book | Deceased |
| YTHANBRAE PLEASURE | Mare | CHESTNUT | F19921 | 14/09/1978 | Foal Recorded | Not Eligible |
| YTHANBRAE SHAKIBA | Mare | CHESTNUT | F19920 | 25/03/1978 | Foal Recorded | Not Eligible |
| YTHANBRAE TINA | Mare | CHESTNUT/ROAN | F19049 | 25/09/1978 | Foal Recorded | Not Eligible |
| YU YAK | Gelding | CHESTNUT | 70574 | 01/01/1979 | Stud Book | Not Eligible |
| YU YANA CANDY | Mare | GREY | 56169 | 01/09/1970 | Stud Book | Deceased |
| YU YANA CINDY | Mare | CHESTNUT | 30153 | 18/12/1965 | Stud Book | Deceased |
| YU YANA JOLI | Mare | CHESTNUT | 39481 | 01/10/1972 | Stud Book | Not Eligible |
| YU YANA TP STATUS | Gelding | CHESTNUT | 59869 | 01/01/1975 | Stud Book | Not Eligible |
| YU YANA VASA | Mare | CHESTNUT | 39480 | 12/08/1973 | Stud Book | Not Eligible |
| YUELAMU ANGELA | Mare | BAY | 37247 | 01/09/1969 | Stud Book | Deceased |
| YUELAMU ANNETTE | Mare | BROWN | 37237 | Stud Book | Not Eligible | |
| YUELAMU BARBARA | Mare | BAY | 37241 | Stud Book | Not Eligible | |
| YUELAMU BETTY | Mare | BAY | 37246 | 01/09/1973 | Stud Book | Not Eligible |
| YUELAMU CAROLL | Mare | BROWN | 37245 | Stud Book | Not Eligible | |
| YUELAMU CARRIE | Mare | BROWN | 37239 | Stud Book | Not Eligible | |
| YUELAMU DAISY | Mare | BROWN | 37240 | Stud Book | Not Eligible | |
| YUELAMU DIANNE | Mare | BAY | 37243 | Stud Book | Not Eligible | |
| YUELAMU EDITH | Mare | BLACK | 37244 | Stud Book | Not Eligible | |
| YUELAMU EVELYN | Mare | BAY | 37235 | Stud Book | Not Eligible | |
| YUELAMU FLOSSIE | Mare | BLACK | 37226 | Stud Book | Not Eligible | |
| YUELAMU FRAN | Mare | BAY | 37221 | Stud Book | Not Eligible | |
| YUELAMU GERALDINE | Mare | BLACK | 37215 | 01/08/1967 | Stud Book | Deceased |
| YUELAMU GLENIS | Mare | BROWN | 37236 | Stud Book | Not Eligible | |
| YUELAMU HAZEL | Mare | CHESTNUT | 37238 | 01/08/1973 | Stud Book | Not Eligible |
| YUELAMU HENRIETTA | Mare | BAY | 37242 | Stud Book | Not Eligible | |
| YUELAMU IRENE | Mare | BAY | 37224 | Stud Book | Not Eligible | |
| YUELAMU ISABELLE | Mare | BLACK | 37222 | Stud Book | Not Eligible | |
| YUELAMU JANET | Mare | BLACK | 37249 | Stud Book | Not Eligible | |
| YUELAMU KATHLEEN | Mare | BROWN | 37220 | Stud Book | Not Eligible | |
| YUELAMU LYNETTE | Mare | CHESTNUT | 37216 | Stud Book | Not Eligible | |
| YUELAMU MARY LOU | Mare | GREY | 37248 | Stud Book | Not Eligible | |
| YUELAMU NOLENE | Mare | GREY | 37223 | Stud Book | Not Eligible | |
| YUELAMU OLLIE | Mare | BROWN | 37217 | Stud Book | Not Eligible | |
| YUELAMU PATTSY | Mare | BAY | 37218 | Stud Book | Not Eligible | |
| YUELAMU QUEENY | Mare | BAY | 37227 | Stud Book | Not Eligible | |
| YUELAMU RONDA | Mare | BAY | 37225 | Stud Book | Not Eligible | |
| YUELAMU SHIRLEY | Mare | BAY | 37230 | Stud Book | Not Eligible | |
| YUELAMU TAMMY | Mare | BLACK | 37228 | Stud Book | Not Eligible | |
| YUELAMU URSHLA | Mare | BLACK | 37232 | Stud Book | Not Eligible | |
| YUELAMU VERONICA | Mare | BAY | 37219 | Stud Book | Not Eligible | |
| YUELAMU WENDY | Mare | BAY | 37231 | Stud Book | Not Eligible | |
| YUELAMU XAVIER | Mare | BROWN | 37229 | Stud Book | Not Eligible | |
| YUELAMU YVONNE | Mare | BROWN | 37233 | Stud Book | Not Eligible | |
| YUELAMU ZORA | Mare | GREY | 37234 | Stud Book | Not Eligible | |
| YUENDOO DREAMER | Gelding | BROWN | 10280 | 03/09/1965 | Stud Book | Deceased |
| YUENDOO JODEY - HSH | Mare | BAY | 1504 | 11/12/1967 | Stud Book | Deceased |
| YUENDOO SECRET | Mare | CHESTNUT | 1501 | 15/08/1969 | Stud Book | Deceased |
| YUENDOO SMOKEY | Mare | DUN | 1502 | 22/11/1960 | Stud Book | Deceased |
| YUENDOO TIGER | Gelding | BAY | 10279 | 04/05/1967 | Stud Book | Deceased |
| YUGAN PRINCESS | Mare | BAY | F15516 | 23/10/1978 | Foal Recorded | Not Eligible |
| YUGILBAR LEICA CHICK | Mare | BROWN | 49519 | 09/10/1976 | Stud Book | Not Eligible |
| YUKEN LASS | Mare | BAY | 3749 | 01/08/1965 | Stud Book | Deceased |
| YUKON - HSH | Mare | BAY | 21179 | 01/10/1965 | Stud Book | Deceased |
| YUKONPARK BUDDY | Gelding | BAY | 239387 | 22/09/2012 | Stud Book | Not Eligible |
| YUKONPARK HIGH ROLLER | Gelding | CHESTNUT | 242076 | 29/11/2014 | Stud Book | Not Eligible |
| YUKONPARK LILLIE | Mare | GREY | C1-265236 | 25/09/2012 | First Cross | Not Eligible |
| YUKONPARK PRIMA DONNA | Mare | BAY | 242075 | 05/11/2013 | Stud Book | Eligible |
| YUKONPARK SKYE - HSH | Mare | CHESTNUT | 265237 | 01/10/2019 | Stud Book | Not Eligible |
| YUKONPARK STELLA | Mare | BAY | 239388 | 07/09/2011 | Stud Book | Not Eligible |
| YUKUZA | Gelding | CHESTNUT | 72279 | 01/01/1974 | Stud Book | Not Eligible |
| YULABA GYPSY | Mare | BROWN | 24049 | Stud Book | Not Eligible | |
| YULARA DREAMTIME | Mare | BAY | 193015 | 12/10/2007 | Stud Book | Not Eligible |
| YULE TARAS INQUEST | Gelding | BROWN | 55037 | 11/10/1976 | Stud Book | Not Eligible |
| YULE TARAS SUMMER HAZE | Mare | CHESTNUT | 31661 | 01/01/1970 | Stud Book | Deceased |
| YULEBA AUDREY | Mare | CHESTNUT | 59199 | 29/12/1977 | Stud Book | Deceased |
| YULEBA BELL BOY | Gelding | BAY | 49807 | 01/10/1975 | Stud Book | Deceased |
| YULEBA CAMEO | Mare | GREY | F39437 | 13/01/1985 | Foal Recorded | Deceased |
| YULEBA DOLLY | Mare | CHESTNUT | F16059 | 06/12/1978 | Foal Recorded | Deceased |
| YULEBA FLASHMAN | Gelding | GREY | 72482 | 02/12/1981 | Stud Book | Not Eligible |
| YULEBA LILY | Mare | BAY | 62266 | 15/11/1979 | Stud Book | Not Eligible |