Denica is of Slavic origin, particularly from the region of Serbia and Macedonia. It's a feminine given name that means "from the den" or "from the valley." The name Denica is often associated with nature and rustic charm. It's composed of two elements: 'den' meaning valley, and '-ica', a diminutive suffix used in Slavic languages to form pet names or familiar forms of names. Therefore, Denica could be interpreted as a playful or affectionate reference to someone from the valley.
The name Denica experienced fluctuating popularity from the late 1960s to the early 2000s, with peaks in the late 1970s and mid-1980s, and a resurgence in the late 1990s.