This research was aimed at the study of isotherm, kinetics and thermodynamics of phenol adsorption onto rice husk activated carbon. The rice husk activated carbon was produced by carbonization followed by activation with phosphoric acid and batch experiment was conducted to obtain the relevant experimental data for analysis. Langmuir and Freundlich models were employed for the isotherm analysis while pseudo-second order rate equation was used for the kinetics study in addition to the thermodynamic model analysis. The adsorption process was found to be inconsistent with the assumption of Langmuir monolayer but conformed to Freundlich assumption of multilayer and physical adsorption. The experimental data followed pseudo-second order kinetic model and the adsorption process was found to be exothermic, feasible and better favoured at lower temperatures .