Introduction: The present study aimed to introduce the temporary marriage and to evaluate its position in Tehran.

  Method: this is a descriptive study. 395 residents of Tehran were selected either single or married. An attitude questionnaire was used for gathering the data.

  Findings: The results of the study have shown that there is at least 9.1 of temporary marriage in the families of the study sample. 25% of the cases said that they were ready for temporary marriage. Culture, family objection, logical objection and permanent wife’s objection are the main obstruct for temporary marriage in Iran. Also, men, single people, employed people, residents of the south and people with a history of temporary marriage in their family have tendency toward temporary marriage. Although 25 % of the study population was inclined to temporary marriage, its prevalence in the society is about 9 %.