Voetspoor is a small, late-tectonic intrusion that cuts through metaturbidite sequences of the Southern Kaoko Zone in the Pan-African Damara Orogen. Modally, the intrusion is classified as (quartz-) monzonite. However, chemically only the porphyritic margin of the intrusion has a monzonitic composition whereas the main, equigranular part is designated as syenite. This mildly alkaline, metaluminous intrusion is cut by dikes of aplitic leuco-syenite. Predominant minerals are alkali feldspar and plagioclase An11-26. Most of the amphiboles plot in the edenite field, but some straddle the border to the magnesiohastingsite (pargasite) and hastingsite (ferropargasite) fields. They may contain armoured relics of diopside. The crystallisation age of the Voetspoor Intrusion has been dated by the Pb-Pb single zircon evaporation technique at 530±3 Ma. Hence, the syenite intruded late-tectonically with respect to the major Pan-African deformation phase in this area. A second zircon generation was dated with the vapour digestion technique and revealed an age of 456±20 Ma. This younger age is interpreted as reflecting new zircon growth during a separate hydrothermal event. Isotopic compositions of the syenites are characterised by moderate initial ?Nd values (-3.9 to -4.9) and relatively low initial 87Sr/86Sr ratios (0.70586 to 0.70610). These signatures, together with trace element and REE characteristics, are interpreted as reflecting the nature of an enriched lithospheric mantle source rather than significant crustal contamination. The enrichment of this part of the mantle from which the syenitic magma was derived may be the result of subduction processes which are significantly older than the crystallisation age of the Voetspoor Intrusion. The ascent of the syenitic magma might be related to deep-reaching fault zones that formed during a late-stage extension in an orogenic triple junction.