next of kin

US /ˌnekst əv ˈkɪn/
UK /ˌnekst əv ˈkɪn/
"next of kin" picture
1.

a person's closest living relative or relatives

:
•
Please provide the name and contact information of your next of kin.
•
In case of emergency, notify the patient's next of kin.
:
closest relativeimmediate familynearest relativelegal heirheir
:
nextnext tothe boy next doorthe girl next door