Water parsley

Water parsley is a common name for several species of plants and may refer to:


 * Apium nodiflorum (Apiaceae), native to Africa, western Asia, and Europe
 * Oenanthe (plant), primarily:
 * Oenanthe javanica (Apiaceae), native to eastern Asia
 * Oenanthe sarmentosa (Apiaceae), native to western North America