- Gaucelm (812–832)
Hereafter, also counts of Barcelona.
- Berenguer of Toulouse (832–835)
- Bernat of Septimania (835–844)
- Sunifred I, also known as Sunyer, (844–848)
- Guillem (848–850)
- Aleran (850–852)
- Odalric (852–858)
- Humfrid (858–864)
- Bernat of Gothia (865–878)
No longer counts of Barcelona.
- Miro the Elder (878–895)
These counts were also counts of Empúries. By this time the counts were practically independent.
- Sunifred II (895–915)
- Bencion (915–916)
- Gausbert (915–931)
- Gausfred I, also known as Wilfred, (931–991)
The counts hereafter were no longer counts of Empúries.
- Giselbert I, also known as Guislabert, (991–1014)
- Gausfred II (1014–1074)
- Giselbert II (1074–1102)
- Girard I, also known as Guinard, (1102–1113)
- Gausfred III (1113–1164)
- Girard II (1164–1172), died without heirs
After Girard II, the county of Roussillon was subsumed within the Crown of Aragón. Later, the title was briefly revived.
For subsequent counts of Roussillon (and Cerdanya), see Kingdom of Majorca.
Louis of Bourbon was the first French Count of Roussillon. He was the illegitimate son of Charles I, Duke of Bourbon and Jeanne Bournan. He was known for his many services to the Kingdom of France and was made an Admiral of France. Louis XI gave him in marriage his illegitimate daughter Jeanne de Valois whom he legitimated in 1466. He died on 19 January 1487 and was buried in the church of the Franciscan monastery of Valognes, which he founded.
- A fictional Count of Roussillon, Bertram, is a principal character in William Shakespeare's play All's Well That Ends Well.