Isaac Lancelot Houlbrooke (born 6 September 2001)[1] is a field hockey player from New Zealand.

[4] In the Ford National Hockey Championship, Houlbrooke represents North Harbour.

He represented the New Zealand U–21 team at the 2022 Junior Oceania Cup in Canberra, where he won a silver medal.

[9][10] He has since been named in the squad for the Sultan Azlan Shah Cup in Ipoh.

This biographical article relating to a New Zealand field hockey figure is a stub.