We report the synthesis of antimony (Sb) nanoparticles using a simple solution based thermolysis route. The Sb nanoparticles were capped by the alkylamines, oleylamine (OAm), hexadecylamine (HDA) and dodecylamine (DDA). The electron microscopy results show that well-ordered, monodispersed particles are formed when Sb is capped with OAm and HDA. The X-ray diffraction patterns show peaks indexed to orthorhombic Sb.