Purpose- The purpose of this study is to emphasize the importance of timing of entrance to international markets for Multinational Enterprises. Methodology- In this study, the importance of the timing of entrance to international markets is tried to be emphasized with a literature research. Findings- The literature review reveals that there are many studies about the internationalization processes of businesses (Williams & Crook, 2021; Kabongo & Okpara, 2019; Meschi, Ricard, & Moore, 2017). Especially with the effect of today's intense competitive environment and globalization, it is seen that the importance of timing for internationalization for multinational companies is discussed in various dimensions. Conclusion- The objective of this study is to focus on the timing of internationalization of Multinational Enterprises. Timing of entrance to international markets has an important role in terms of the strategies of the firm that are aiming to open up to different markets. Sometimes businesses may have the advantage of entering earlier to the market and getting the advantage of being first mover by putting their internationalization strategies into practice earlier, but they may also face the risks of some unknown factors related to be first mover. On the other side when businesses prefer to enter international markets with a delay, even if it is less costly than entering the market first, it may be possible that this time the timing of entrance will not result in an advantageous market entry strategy (Tuppura et al., 2008). The decision of timing of entrance to international markets is a critical decision for Multinational Enterprises. The possible outcomes of timing of entrance to foreign markets should be evaluated in detail.