The 23-year-old goalkeeper joins Rangers from Hibernian Ladies, where she has played her football since 2013.
Fife brings a vast range of experience to the club having been part of Scotland’s World Cup squad in France, and has played Champions League level football with Hibs.
She made her first start for Scotland in January this year, and has made four appearances for the national side.
Women’s and Girls’ Football manager Amy McDonald said: “I am so pleased to welcome Jenna to the club. A signing of her calibre is proof of the steps we are making towards building a very strong squad for the season ahead.
“To welcome her to Rangers shows the ambition we have for this team and the kind of talent we want to bring here.”
“Securing a top class goalkeeper was very important to us and to do it so early in the close season is brilliant.”