This study was designed to examine the mediating role of job satisfaction on the relationship between communication satisfaction and organizational commitment of agriculture researchers in six purposively selected agricultural research institutes in Nigeria. Communication satisfaction in this study was considered both as uni-dimensional and multi-dimensional construct. The results obtained from 209 respondents of focal research institutes using the hierarchical regression analyses indicated that overall communication satisfaction was significantly related to job satisfaction (b = 0.11, p < 0.01) and organizational commitment (b₁= 0.15, p < 0.01). Further, top management communication was found to be significantly related to job satisfaction (b₁= 0.31, p < 0.01). Similarly, relationship to supervisor (b₁= 0.19, p < 0.05), top management communication (b₁= 0.27, p < 0.05) and organizational integration (b₁= 0.27, p < 0.05) were significantly related to organizational commitment. The Sobel test also indicated that job satisfaction partially mediated the relationship between communication satisfaction and researchers’ commitment (Z = 4.45, p < 0.05). The findings clearly showed that with increased communication satisfaction, researchers’ satisfaction with job is boosted and they are likely to exhibit greater organizational commitment and less willing to leave the organization. Evidence of partial mediation revealed that job satisfaction may not be the only mediator of the predictor-criterion linkage.