Tom Yum or Tom Yam is a popular Thai soup with a pungent and zesty flavors of spicy and sour. There are many version and some of the popular tom yum are:
Tom Yum Goong/Kung (Thai for prawn) - made with prawns as main ingredient
Tom Yum Gai/Kai (Thai for chicken) - the chicken version of the soup
Tom Yum Talay (Thai for sea) - a variant of the soup with mixed seafood
Tom Yum Nam Khon is made with prawns, coconut milk and toasted dired chillies