Myiasis is a rare condition caused by the invasion of tissues by the larvae of flies, mainly from the order of dipteran fly larvae^1,2,3. Oral myiasis is very rare in healthy persons ^1,3. It occurs mainly in the tropics and is usually associated with inadequate personal and public hygiene^1,2,3. We present three cases of oral myiasis. In that two were mentally retarded, 13 year and 24 year–old girls suffering with cerebral palsy. Large numbers of larvae were found in the gingival sulcus of the mandibual region and right side of hard palate. In third case ,40 year old female patient with poor oral hygiene and an extensive necrotic area in the posterior region of the maxilla and fetid odor.  In all three cases the diagnosis was based on the typical clinical features and the visualization of wriggling of the larvae. Treatment consisted of manual removal of the larvae, one by one, with the help of turpentine oil and clinical forceps, local debridement of the labial gingival, right side of hard palate and oral hygiene practice. Healing was uneventful, with resolution of the condition.