The role of logical/mathematical intelligence in SL writing has not clearly been discovered and linguistic intelligence is claimed to be the key factor responsible for SL skills. This study attempts to investigate the relationship between quantitative usage of logical connectors, in terms of both token and type, in Iranians' EFL essay writing and their logical/mathematical and linguistic intelligences. The required data was supplied from a corpus of 300 essay-type compositions written by 100 sophomore English major students, as well as an intelligence questionnaire. The findings revealed that EFL students with higher logical/mathematical intelligence tend to use more logical-connectors in their essay writing. {\textcopyright} 2010 Elsevier Ltd. All rights reserved.