---
title: UID
id: uid
date: 2018-04-12
full_link: /docs/concepts/overview/working-with-objects/names
short_description: >
  A Kubernetes systems-generated string to uniquely identify objects.

aka: 
tags:
- fundamental
---
 A Kubernetes systems-generated string to uniquely identify objects.

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Every object created over the whole lifetime of a Kubernetes cluster has a distinct UID. It is intended to distinguish between historical occurrences of similar entities.

