Kaloyan Toshkov Ivanov (born March 18, 1986) is a Bulgarian professional basketball player for Levski Sofia of the NBL. Standing at 2.06 m (6 ft 9 in), he plays at the power forward position.

Tsar Kaloyan Municipality (Bulgarian: Община Цар Калоян, former name Hlebarovo Municipality) is a small municipality (obshtina ) in Razgrad Province, Northeastern Bulgaria, located in the Danubian Plain about 27 km southeast of Danube river. It is named after its administrative centre - the town of Tsar Kaloyan.

Kaloyan Dinchev (Bulgarian: Калоян Динчев; born February 3, 1980 in Stara Zagora ) is an amateur Bulgarian Greco-Roman wrestler, who played for the men's heavyweight category. He won a bronze medal for his division at the 2006 World Wrestling Championships in Guangzhou, China. He is also a two-time Olympian, and a member of Slavia Litex Wrestling Club in Sofia, under his personal coach Bratan Tzenov.

Kaloyan (Bulgarian: Калоян; Old Bulgarian: КАЛѠѢНЪ, Kalōjěnŭ) and Desislava (Bulgarian: Десислава; Old Bulgarian: ДЕСИСЛАВА, Desislava) were 13th-century Bulgarian nobles, sebastocrators of Sredets (Sofia ) and the surrounding region during the Asen dynasty of the Second Bulgarian Empire. They are credited as main donors and patrons of the Boyana Church. Their portraits, created in 1259 by the painters of Tarnovo Artistic School in Boyana Church are considered by many leading experts as the first Renaissance images in European art

Tsar Kaloyan (Bulgarian: Цар Калоян) is a town in northeastern Bulgaria, situated in Razgrad Province near the town of Razgrad. It is the administrative centre of the homonymous Tsar Kaloyan Municipality. As of December 2009, the town has a population of 3,856 inhabitants.

Kaloyan Kopchev (Bulgarian: Калоян Копчев; born 22 June 1975) is a former Bulgarian football midfielder who is currently the director of the Health Insurance Fund in Ruse.

Kaloyan Krastev (Bulgarian: Калоян Кръстев; born 24 January 1999) is a Bulgarian footballer who currently plays as a forward for Slavia Sofia on loan from the Italian club Bologna.

Kaloyan Cvetkov (Bulgarian: Калоян Цветков) (born 27 September 1988) is a Bulgarian footballer, who plays for PFC Panayot Volov as a midfielder.

Kaloyan Tsvetkov (Bulgarian: Калоян Цветков; born 21 October 1988) is a Bulgarian footballer who plays as a midfielder for Bdin Vidin.