9 pages., via online journal., This study assessed the effectiveness of extension communication methods used in disseminating information to farmers in Ogbomoso Agricultural zone of Oyo State. Multi-stage sampling procedure was used to select 120 respondents. Data were analysed using frequency, percentage, standard deviation, mean, median and mode statistics. The findings show that the extension communication methods used for farmers were farm visit (89.2%) and home visit (78.5%), contact farmers (73.3%) and method demonstration (51.7%). Contact farmers, farm visits and home visit were the most frequently used communication strategies by extension agencies while farm visit (x=1.57) was the most preferred extension method to receive information and technologies and respondents perceived the extension communication methods used to be moderately effective. The study recommends that extension officers should consider the use of communication methods preferred by the farmers to communicate information to them.