Family name Riika (Riika 
) , all over the world, is a rare cognomen. The cognomen Riika is characteristic of Finland, where it is a very rare surname, India, and Spain, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in India, Nigeria, and Finland. More prevalently, Riika is the forename as well as the last name.
Ben, Pancal, Gandhi, Justus, Tandel, Vaghel, Fuller, Wright, Solanki, Paramar, Räisänen, Gropper, Toivola, Marttila, Seppälä, Bhavasar, Karinoro, Poutanen, Richwari, Nurminen, Huitti-Malka, Jorgensen, Panday, Tauriainen, Parikh, Sirkas, Nen, Modi, Saha, Soni, Buca, Pita, Rana, Dave, Dosi, Jani, Josi, Tela, Nick, Mahet, Cavad, Patel, Raval, Desai, Jadav, Nayak, Magnus, Cauhan, and Handayani