The present article is an empirical research on the differences of girls’ and boys´achievement in reading comprehension in English as a foreign language at the end of their Spanish Compulsory Secondary Education (4th year of CSE). It aims to analyse both the global and the specific objetives of reading comprehension development in this subject in relation to the students’ gender. Finally, we describe the average females and males students’ level in reading comprehension in English. The results allow us to conclude that females students obtain better global results than their males partners. They also get better marks in the specific objectives: getting specific information, getting general information, understanding textual structure and deducing meaning from the context.