The purpose of the present research was to study the effect of ten weeks Aquatic balance training(ABT) and functional training (FT) on dynamic balance in inactive elder males. Forty inactive elder males voluntarily participated in this research and randomly divided into three groups of ABT (N=13), FT(N=14) and control (N=13). The Y-Balance Test was used to assess dynamic balance before and after training. The training procedures were elaborated for the subjects and were performed for ten weeks, 3 sessions per week and one hour per session. One-way ANOVA was applied to determine the differences between three groups at the α ≤0.05. The results revealed that there were not any significant differences between three groups in pretest and between ABT and FT in posttest (P ≤ 0.05) as well. However, there were significant differences between ABT and FT with control group (P ≤ 0.05) in posttest. Considering the results, using both types of training are recommended for increasing dynamic balance in inactive elder males. That is because these types of training are inexpensive, yet innovative and its training intensity corresponds to the physical fitness of inactive elder males.