FindObjectsWithMesh.cs

using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using UnityEditor;

public class FindGameObjectsWithMesh : EditorWindow
{
	[MenuItem("Tools/ProBuilder/Debug/Find GameObjects with Mesh Name")]
	private static void MenuInit()
	{
		GetWindow<FindGameObjectsWithMesh>(true, "Find GameObjects with Name", true);
	}

	private string m_MeshName = "";
	private MeshFilter[] m_Matches = new MeshFilter[0];

	private void OnGUI()
	{
		m_MeshName = EditorGUILayout.TextField("Mesh", m_MeshName);

		if(GUILayout.Button("Find"))
			m_Matches = Resources.FindObjectsOfTypeAll<MeshFilter>().Where(
				x => x.sharedMesh != null && x.sharedMesh.name.Contains(m_MeshName))
					.ToArray();

		GUILayout.Label("GameObjects with Mesh Name", EditorStyles.boldLabel);

		foreach(MeshFilter mf in m_Matches)
		{
			if(GUILayout.Button(mf.sharedMesh.name))
				EditorGUIUtility.PingObject(mf);
		}
	}
}