Lydia Kerr (nee Crossman) (born 29 September 1986) is a former New Zealand rugby union player.

[1] She captained her Epsom Girls' Grammar School rugby team.

[1] Lydia was named in the Black Ferns squad in a three Test tour to England in 2011.

[4] A year later, Lydia was again selected for the Black Ferns, this time for another three-Test tour of England.

[6][7] Crossman made her final appearance for New Zealand in the third test of that tour.