The 1999 Seattle Seahawks season was the franchise's 24th season in the National Football League (NFL), the last playing their home games at the Kingdome and the first under head coach Mike Holmgren. It was also the first season that Seattle made the playoffs in eleven seasons. It would be Seattle's last playoff appearance as an American Football Conference (AFC) team. They would not return to the playoffs until 2003, after being moved to the National Football Conference (NFC).