| Trakehner Name | Sex | Foaled | Sire | Dam | Color | |
|---|---|---|---|---|---|---|
| Businesslike xx | Mare | 1939 | Blue Larkspur xx | La Troienne xx | brown | |
| Business Like xx | Mare | 1991 | Time for a Dance xx | Osage Queen xx | roan | |
| Bussard | Stallion | Unknown | Unknown | |||
| Bustard xx | Stallion | Unknown | Unknown | |||
| Busted xx | Stallion | 1963 | Crepello xx | Sans Le Sou xx | bay | |
| Buster xx | Stallion | Unknown | Unknown | |||
| Bustino xx | Stallion | 1971 | Busted xx | Ship Yard xx | bay | |
| Busy Again xx | Mare | Unknown | Unknown | |||
| Busy Beau xx | Stallion | Unknown | Unknown | |||
| Busy Bing xx | Mare | 1967 | Busy Beau xx | Perfectora xx | Unknown | |
| Busybody xx | Mare | 1881 | Petrarch xx | Spinaway xx | bay | |
| Busy Deck xx | Stallion | Unknown | Unknown | |||
| Butello | Stallion | Unknown | Unknown | |||
| Bütow *E* | Stallion | 1981 | Mahagoni | Barina II | bay | |
| Buttercup xx | Unknown | Unknown | ||||
| Butterflower | Mare | Unknown | Unknown | |||
| Butterfly By xx | Mare | Unknown | Unknown | |||
| Butterfly Dance xx | Mare | 1899 | Saraband xx | Mariposa xx | Unknown | |
| Butterfly Dreams xx | Mare | 2003 | Comic Strip xx | Paula of the Met xx | bay | |
| Butterfly Lady xx | Mare | 1986 | Lucky Colonel S. xx | Better Fly xx | Unknown | |
| Butterpat xx | Mare | Unknown | Unknown | |||
| Butylen | Stallion | Unknown | Unknown | |||
| Buy And Beware xx | Mare | 1945 | Buy And Sell xx | One Time xx | Unknown | |
| Buy And Sell xx | Stallion | Unknown | Unknown | |||
| Bu-Zahr ox | Stallion | Unknown | Unknown |