Abstract: This research was conducted to determine the relationship among yield and some yield components of potato using correlation and path coefficient analysis. The experiment was carried out eastern of Turkey (Van-Gevas ecological conditions) in 2001 and 2002. In this study, 21 potato cultivars were used. The experimental design was a randomized block with three replications. Positive and significant relationships were found among tuber yield and plant height, number of stems per hill, number of tubers per hill, tuber weight, tuber yield per hill, percentage of medium size and big tubers, dry matter content and starch content of the tubers. A negative and significant relationship was determined between tuber yield and percentage of small tubers, negative and a non-significant relationship was determined between the tuber yield and the specific gravity. According to the path coefficient analysis, there were strong positive direct effects of tuber yield per hill, dry matter content and number of tuber per hill on tuber yield, p.c : 0.7928, 0.1646 and p.c: 0.1518, respectively.