According to Genesis, Noah made a window in the ark near its top.
Genesis 6:16 instructs Noah to make an opening for the ark and to finish it to one cubit above. English translations vary: some say “window,” while others use “opening,” “roof,” or a related term because the underlying Hebrew wording is debated. In Genesis 8:6, Noah opens the window he made and sends out the raven.
The wording does not clearly describe a modern glass window. It refers to an opening that allowed Noah to observe outside conditions and release birds. The account separately mentions the ark’s door, which God shuts in Genesis 7:16, so the opening and the entrance are not the same feature.
This detail is easy to merge with later artistic reconstructions that show rows of windows along the ark’s sides. Genesis specifically mentions an opening near the top, but it does not provide a complete architectural blueprint or state that the ark had multiple side windows.