UJA f. 1953
KING SALMON (GB) - , by

UJIJI (GB) c. 1939
UMIDWAR (GB) - THERESINA (GB), by

UKARA (BRZ) f. 1955
HELIACO (BRZ) - MY LADYSHIP (GB), by BLUE PETER (GB)

UKRANIA (BRZ) f. 1926
SIN RUMBO (ARG) - ODALEA (BRZ), by PERICLES (GB)

ULANGA (BRZ) f. 1976
SASSAFRAS (FR) - GALANGA (GB), by GREY SOVEREIGN (GB)

ULANOVA () f. 0000
- , by

ULTIMA FORSAN f. 1990
GHADEER (FR) - CASH AND WIN (BRZ), by RIO BRAVO (USA)

ULTIMA RATIO (BRZ) f. 1942
BLACK DEVIL (---) - CHYPRE (---), by

ULTIMATE HEIGHTS f. 2008
KNOW HEIGHTS (IRE) - ONTEMHOJEESEMPRE (BRZ) , by VETTORI (IRE)

ULTIMATUM (BRZ) f. 2008
KNOW HEIGHTS (IRE) - PRETTY GIPSY (BRZ), by CLACKSON (BRZ)