Four-in-a-row (or four-in-a-line, Yonmoku-Narabe) is the name for several games in which the object is to line up four things in a row. Some of these games are:
Connect Four Score Four 3-D Tic-Tac-Toe Kaplansky's game Quarto (board game) Gobblet
See also Pixel (board game): Four-in-a-row for 2 or 3 players, three-in-a-row for 4 players.