HighlightsThe prevalence and density of internal parasite ova were recorded from wild elephants in the Okavango delta.Coccidian oocysts, and eggs of nematode and fluke parasites, were found to be common.Associations were found between infection and age, sex, group size composition, month and year of sampling.Coccidia appeared to be transmitted predominantly in the rainy and flood seasons.Formalin appeared to adversely affect recovery of all parasite taxa after prolonged storage.