Yam is the first food crop in Côte d’Ivoire. However, it has experienced a low yield due to anthracnose. The objective of this work is to identify the disease endemic zones, the most susceptible yam varieties and the causative agents of anthracnose. A phytosanitary survey was then conducted in four yam growing zones of Côte d’Ivoire (Centre-north, Centre, Nord-east and South-west) three months after planting, to evaluate the distribution and the prevalence of this disease on two improved varieties (TDa/0090 and C18) and one or two local varieties (bètè-bètè, krenglè, adaguié, sapian et woro) specific to each study area. Leaves and stems symptomatic sample were taken for laboratory analysis. Three groups of symptoms were identified : brown necrosis surrounded by a yellow halo, black necrosis and burns. The prevalence of yam anthracnose ranged from 4 to 72,22 % and the severity from 1 to 4. The highest prevalence was observed in the South-west zone and on the local varieties. Samples analysis revealed that Colletotrichum gloeosporioides/Glomerella cingulata would be responsible to yam anthracnose in Côte d’Ivoire.