This article provides an overview of the Russian origin of Karelian cow names. It explores what the Russian-origin names mean, what the most common principles of naming are, and whether Russian names have Karelian equivalents. Attention is also paid to the spatial and temporal variation of the names. The data were collected in the 2010s by means of interviews. The data are compared with the name data recorded in the Dictionary of Karelian (KKS). The KKS data reveal extensive adaptation to the Karelian language, whereas in the interview data there is less adaptation to Karelian and the names are often thoroughly Russian. In the KKS data the most common principle of naming is the time of birth, and names based on colouration are also common. According to both data sets, the principles of naming have remained relatively consistent, and the data reveal no great spatial differences in the occurrence of names.
