This study aimed at detecting the relationship between metamemory and academic achievement among Al-Hussein Bin Talal University students. The sample consisted of ( 366 ) students chosen randomly from Al-Hussein Bin Talal University who were enrolled during the year 2007/2008. Metamemory scale was administrated. The findings of the study revealed a moderate average level of metamemory among the students. It also revealed a statistically significant correlation between students\' metamemory ( and subtests ) and their academic achievement. In light of the findings, the researchers recommended teaching metamemory and its subtests for university students. ( KeyWords : Metamemory, Academic Achievement).