Tha Chang (Thai: ท่าช้าง, pronounced [tʰâː t͡ɕʰáːŋ]), or Tha Chang Wang Luang (ท่าช้างวังหลวง, [tʰâː t͡ɕʰáːŋ wāŋ lǔaŋ]), with designated pier code N9, is a pier on the Chao Phraya River at the end of Na Phra Lan Road in the area behind the Grand Palace next to Nagaraphirom Park and Ratchaworadit Pier.