| valign=top | Location | Ugljevik, Republika Srpska, Bosnia-Herzegovina |
| valign=top | Population - (est.) - (1991 census) | 2600 2632 |
| Area code | +387 55 | |
| Time zone | CET (UTC +1) CEST (UTC +2) | |
| Website | ||
Trnova (Cyrillic: Трнова) is a populated location near the town of Ugljevik, in the Republika Srpska zone of Bosnia-Herzegovina. It is divided between Gornja Trnova, where in 1991 nearly all residents were Serbs, and Srednja Trnova, where in the same year most were Bosniaks.
The total population of Gornja Trnova is 420, comprising 413 Serbs (98.33%), 2 Croats (0.47%), 2 Yugoslavs (0.47%) and 3 others and unknown (0.71%.)
Out of Srednja Trnova's population, 682 (94.59%) were Bosniaks, 24 (3.32%) were Yugoslavs, 12 (1.66%) were Serbs and 3 (0.41%) were others and unknown.