Kalin is the Bulgarian masculine form of Kalina, a feminine name derived from the Slavic word for the viburnum tree (Kalina). In Bulgarian culture, the name Kalina itself is directly taken from the plant name, which is also a popular given name for girls. The masculine variant Kalin is used to denote a male bearer who shares this floral association. While Kalin is relatively uncommon outside of Bulgarian-speaking communities, it has seen some usage as a given name in other Eastern European countries. In terms of availability and perceived gender alignment, Bulgarians recognize Kalin exclusively as a masculine name, distinguishing it from the feminine Kalina. The name is more often encountered as a surname in English-speaking countries. According to the 2010 United States Census, the surname Kalin is held by 1456 individuals and is most common among white Americans. The phonetic similarity to the Romanian name Călin has led to occasional connections between the two, as both are cognates via their plant origins. Meaning: masculine form of Kalina, meaning 'viburnum tree' Origin: Slavic (Bulgarian) Type: given name (masculine) Common usage: Bulgaria and Bulgarian diaspora