A new species of coccidia (Apicomplexa: Sarcocystidae) is described from zoo-housed suricate or slender-tailed meerkat, Suricata suricatta (Scheber 1776). Oocysts of Cystoisospora timoni n. sp. are spherical to subspherical, 25.9 (1.5) × 24.8 (1.6) (22.5-30.4 × 20-27.2) μm, with a shape index (length/width) of 1.05 (1.00-1.2). A micropyle, oocyst residuum and polar granule are all absent. Sporocysts are ellipsoidal, 15.3 (1.4) × 12.8 (0.8) (12.5-17.5 × 10.0-14.0) μm, with a shape index of 1.20 (1-1.3). Stieda and substieda bodies are absent, but a sporocyst residuum is present and composed as a large cluster of hundreds of small homogeneous granules. Sporozoites are elongate, each with a nucleus slightly posterior to the midpoint of the sporozoite and there is a crystalloid body difficult to discern posterior to the nucleus. Sequence and phylogenetic analysis of the 18S ribosomal RNA gene revealed the coccidian to be a member of the Sarcocystidae.