R.T.1. Feyisola, A.F. Adepoju, M. Baba Nitsa, I.A. Adenikan, Y.P. Ayoade, S.C. Dimonyejiaku, S.T. Balogun Coffee, variability, berries, breeding, germplasm 61-69 10(2) 2026 April 2026 Coming soon This study was carried out at the Cocoa Research Institute of Nigeria, Ibadan, during the 2024 rainy season to evaluate variability among coffee accessions using important morphological traits. The experiment was laid out in a randomized complete block design with three replications. Data were collected on seven morphological characters associated with plant growth and berry attributes. Significant variation was observed in fruit shape, with 50% of the accessions producing roundish fruits, while the remaining accessions showed fruit shapes ranging from obovate to elliptic. Likewise, about 70% of the accessions produced mature berries with orange-red coloration. Principal component analysis revealed that PC1 to PC4 recorded cumulative factor loadings of 0.614%, contributing significantly to the variability detected among the ten accessions. High phenotypic coefficient of variation values were recorded for plant height at first branch (88.17%), berry weight (49.76%), seed weight (27.33%), and number of plagiotropic branches (41.60%). Similarly, high genotypic coefficient of variation values were observed for plant height at first branch (69.02%) and number of plagiotropic branches (30.94%). The findings demonstrated substantial genetic variability useful for future coffee breeding and selection programmes. The observed diversity among the evaluated accessions suggests the presence of valuable genetic resources that can enhance breeding efficiency, productivity, adaptability, and long-term improvement of coffee germplasm programs.