H. madagascariensis

H. madagascariensis may refer to:
 * Harungana madagascariensis, the haronga, a flowering plant species found in tropical Africa (including Madagascar) and Mauritius
 * Heterixalus madagascariensis, a frog species endemic to Madagascar
 * Hickelia madagascariensis, a bamboo species found in Madagascar
 * Hippopotamus madagascariensis, the Malagasy hippopotamus or Malagasy dwarf or pygmy hippopotamus, an extinct mammal species that lived on the island of Madagascar
 * Hypsipetes madagascariensis, the Madagascar bulbul, a songbird species found on the Comoros, Madagascar, Mayotte and the Seychelles