Language and gender have a strong connection, especially in a social context. This study examines register in Arabic by looking at the language used by male and female teachers who utilize the YouTube media platform to provide basic Arabic tutorials. From these videos, the language characteristics of male and female Arabic language teachers can be observed, in terms of gender. In general, this study investigates the registers of male and female Arabic language teachers. Specifically, it elaborates on the significant differences between the language used by male and female Arabic language teachers based on a register analysis. The research question is thus divided into two: (1) what is the typical character of male teachers and female teachers of Arabic on YouTube channels; (2) how do male and female Arabic teachers use register on YouTube channels. The method used in this research can be divided into three stages. The first stage was the data collection, which was carried out by viewing and observing Arabic language learning videos uploaded onto YouTube channels by male and female teachers. The second stage was the data analysis, which used the model of Miles and Huberman, consisting of data reduction, data display and data conclusion. The final stage was the reporting of the results, using illustrative quotes in the form of descriptions and narratives related to the language registers of male and female teachers in terms of a sociolinguistic study. The gender-based language characteristics can be identified from aspects of gesture, word choice, greeting pronunciation and the mention of personal names. This research contributes to the development of the study of language learning in terms of gender based on an online social media platform.