The aim of this study is to investigate relationships among primary 7 and 8 grade students’ spatial ability and their gender, mathematics achievement and early childhood education. This study was conducted in İzmir with 674, 7th and 8th grade students of 9 primary schools. The research is a descriptive study. To collect data MGMP Spatial Ability test and personal information form were utilized. In order to analyze the obtained data mean, t-test and Pearson product moment correlation were used. The results indicated that spatial abilities of primary 7th and 8th grade students were low level and significant relationships between spatial ability and gender were not found. There was a significant positive relationship between spatial ability and mathematics achievement, and there was a significant positive relationship between spatial visualization and spatial relations. Furthermore, the students who had early childhood education more performed in spatial ability test than those who had not.