In March 2011, Beattie played as a striker and scored in Scotland's 2–0 win over England, the first time Scotland had beaten England since 1977. Beattie became a regular with the Scotland national team. While she was instrumental in helping Scotland reach its first major tournament, the 2017 UEFA Women's Euro Championship, she missed out on the tournament due to injury. She continued her contribution helping Scotland qualify for its first FIFA Women's World Cup, the 2019 tournament in France. On 15 May 2019 Beattie was named to the Scotland's 2019 Women's World Cup squad. At the finals, she scored in the 3–3 tie with Argentina.