A list of studbook abbreviations, from now and some from the past:
| Country | Country Code | Studbook Code | Studbook Annex | Historic Studbook Codes |
|---|---|---|---|---|
| ARGENTINA | RA | FCA | ||
| AUSTRALIA | AUS | ANKC | ||
| AUSTRIA | A | ÖHZB | ÖHStB | |
| AZERBAIJAN | AZ | AKU | ||
| BAHRAIN | BRN | K.C.B. | ||
| BELGIUM | B | LOSH | ALSH/RISH | |
| BELARUS | BIR | BCU | BCU/Rg | |
| BOLIVIA | BL | KCB, LPB | ||
| BOSNIA AND HERZEGOVINA | BH | BHR | ||
| BRAZIL | BR | CBKC | ||
| BULGARIA | BG | PK | ||
| CANADA | CDN | CKC | ||
| CHILE | RCH | KCC | ||
| CHINA | CN | CKU | ||
| COLOMBIA | CO | LOC | ||
| COSTA RICA | CR | ACC, CR | ||
| CROATIA | HR | HR | ||
| CUBA | C | FCC, LGC | ||
| CYPRUS | CY | CYA | ||
| CZECH REPUBLIC | CZ | CKS, CKSP, CLP, CMKU, CSHPK, CSSKK | CKS reg., CKSP reg., CLP reg., CMKU reg., CSHPK reg., CSSKK reg. | |
| DENMARK | DK | DKK | ||
| EL SALVADOR | ES | ES-E, ES-F, ES-P | ||
| ECUADOR | EC | LER | LES | |
| ESTONIA | EE | EST | ||
| FINLAND | FIN | FIN, SF / ER | EJ / ER | |
| FRANCE | F | LOF | ||
| GEORGIA | GE | FCG, GEO | ||
| GERMANY | D | VDH | ||
| GIBRALTAR | GBZ | GKC | ||
| UNITED KINGDOM | GB | KC | ||
| GREECE | GR | BEA, BEK, GR‐F, GR‐N | BEA 1, BEA 2, BEA 3 | |
| GUATEMALA | GCA | F.C.G. | ||
| HONDURAS | RH | ACH | ||
| HONG KONG | HK | HKKC | ||
| HUNGARY | H | MET | ||
| INDIA | IND | KCI | ||
| IRELAND | IRL | IKC | ||
| ICELAND | IS | IS, ISO | ||
| ISRAEL | IL | ISBR | ||
| ITALY | I | LOI, ROI | LIR | |
| JAPAN | J | JKC | ||
| KAZAKHSTAN | KZ | UCK | ||
| LATVIA | LET | LV | ||
| LITHUANIA | LIT | LSVK | ||
| LUXEMBOURG | L | LOL | ||
| MACEDONIA | MAC | MR | ||
| MALAYSIA | MAL | MKA | ||
| MALTA | MT | MKC | ||
| MOROCCO | MA | LMO | RIM | |
| MEXICO | MEX | FCM, GA, MA | ||
| MOLDOVA | MOL | UCHM | ||
| MONACO | MC | LOM | ||
| MONTENEGRO | MN | MNE | ||
| NICARAGUA | NIC | NIC‐F, NIC‐E, NIC‐P | ||
| NORWAY | N | N | ||
| NEW ZEALAND | NZ | NZKC | ||
| PAKISTAN | PK | KP | ||
| PANAMA | PA | LCP | RIP | |
| PARAGUAY | PY | PKC, RG | ||
| NETHERLANDS | NL | NHSB | NSHB.BIJL. | |
| PERU | PE | KCP | ||
| PHILIPPINES | RP | PCC | ||
| POLAND | PL | KW, PKR | ||
| PUERTO RICO | PR | FCPR | ||
| PORTUGAL | P | LOP | RI | |
| DOMINICAN REPUBLIC | DOM | FCD | ||
| SOUTH AFRICA | ZA | KUSA | ||
| ROMANIA | R | COR | ||
| RUSSIA | RUS | RKF, RUS | RKF R., RUS R. | |
| SAN MARINO | RSM | LOSM | RISM | |
| SERBIA | SRB | JR | ||
| SLOVAKIA | SK | SPKP, SUCHNO, SHPK | SPKP Reg. | |
| SLOVENIA | SLO | SLR | ||
| SPAIN | E | LOE | RRC | |
| SWEDEN | SE | S | ||
| SWITZERLAND | CH | LOS, SHSB | ||
| TAIWAN | RC | K.C.T. | ||
| THAILAND | TH | KCTH | ||
| UKRAINE | UK | UKU. | UKU.R. | |
| UNITED STATES OF AMERICA | USA | AKC, UKC, FDSB | ||
| URUGUAY | U | KCU | ||
| UZBEKISTAN | UZ | KFU | ||
| VENEZUELA | YV | FCV | ||
| ZIMBABWE | ZWE | ZKC |