The expressions of invitation in Japanese known as kanyuu hyougen. Kanyuu hyougen may vary depends on grammatical form whose speaker uses, situation in which conversation occurs, and also depends on speakers gender. This research employs desciptive analysis methods to examine variation in kanyuu hyougen focused on grammatical forms variation, variations on formal and informal conversation, and variations between language used by female and male in expressing invitation. The data in this research are obtained from text books, anime, and Japanese dorama. The finding of the research showed that in terms of grammatical forms, there are seven variations of kanyuu hyougen, which is V-mashou, V-mashouka, V-masenka, V-you, V-youka, V-naika, and V-nai. In formal situation, V-mashou form is commonly used. Meanwhile in informal situation, V-you and V-youka are more common. Male speaker tends to use V-mashou, and V-youka form. In contrast, female speaker tends to use V-mashou and V-you form