GameObject.tag

The tag of this game object.

A tag can be used to identify a game object. Tags must be declared in the tag manager before using them.

JavaScript

gameObject.tag = "Player";

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    void Example() {
        gameObject.tag = "Player";
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    def Example():
        gameObject.tag = 'Player'