Sometimes, the speakers of a language form new words in order to express their intended concepts and meanings. In doing so, they tap into and follow some principles and patterns which lead to some processes generally known as word formation processes. Reduplication is one of these processes which is used in most languages. In reduplication, new words are generated when all or part of a word is reduplicated. The present study was undertaken to examine this process, i.e. reduplication in Lari, a language from the southeast of Iran with an ancient history and to explore the word formation and meaning of the words created as a result of this process. The lexicons were collected through library research and were analyzed next. The findings of the study indicate that both total and partial reduplication exist in Lari, and each of these two forms of reduplication has its own sub-categories. Furthermore, during the study, some words were found which could not be used on their own and had to attach to a light verb for them to be used in a sentence.