The 1997 Tri Nations Series was the second Tri Nations Series, an international rugby union competition contested by the men's national teams from Australia, New Zealand and South Africa. It was played from 19 July to 23 August, with each team playing each of the others twice – once at home and once away. New Zealand won all four of their matches to claim a second straight title.
New Zealand also won the Bledisloe Cup, a title contested only between themselves and Australia, for the third year in a row. They led 1–0 going into the Tri Nations, having won the test between them in Christchurch two weeks before the start of the series, and the two victories in the Tri Nations gave them a 3–0 final result.
