Abstract : Frenum is thin fold of mucous membrane with enclosed muscle fibers which attach the lip to the alveolar mucosa and underlying periosteum on the labial aspect of the maxilla and mandible. The Frenal variations depending on the fibers attachment in addition to the presence of structural variations. The purpose of the current study is to find the prevalence of types of labial frenum attachment in a sample of Iraqi Population. The study was conducted on 2157 patients (1,105 males, and 1,052 females), aged between 10 - 70 years. Those patients attended to Periodontics Department –Department of Dentistry –Al-Rafidain University College, Baghdad, Iraq. The most important findings from this paper revealed that female showed higher percentages of frenum attachment types: mucosal (24.68%), gingival (18.83%), papillary (7.60%) and papillary penetrating (1.55%) than male frenum attachment types: mucosal (21.64%), gingival (7.50%) and papillary (6.94%) and papillary penetrating (1.26%). The current study has found that the majority of frenal attachments were of mucosal type. The next more prevalent types were gingival followed by papillary and the least frequent was papillary penetrating. Frenectomy could be used to treated high frenum attachment