Cognomen 里思 (Reith 
, 里思 
) , all around the world, is a common last name. The surname 里思 is habitual in Germany, where it is quite a rare surname, Austria, and New Zealand. Not in comparison with a country's population, this name is the most popular in Germany, the United States, and the United Kingdom. Much less frequently, 里思 is the forename as well as the last name.