Abstract: In this study, researchers have considered a Size Biased Gamma Distribution (SBGMD), a particular case of the weighted gamma distribution, taking the weights as the variate values. Moments of the distribution are derived. Also, the estimates of the parameters of Size Biased Gamma Distribution (SBGMD) are obtained by employing different methods. A Bayes’ estimator of Size Biased Gamma Distribution (SBGMD) has also been obtained by using non-informative and gamma prior distributions.