Cognomen 利奇 (利奇 
, Litch 
, Leach 
) , globally, is a common last name. The surname 利奇 is habitual in Isle of Man, where it is quite a common surname, Guernsey, and British Virgin Islands (explore the name in all countries). Not in comparison with a country's population, the name is most common in the United States, the United Kingdom, and Australia. Very seldom, 利奇 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 利奇 | China |
| Litch | South Africa, Canada, United Kingdom, United States, Democratic Republic of the Congo |
| Leech, Leach | Australia, South Africa, Canada, United Kingdom, United States |