Ria Tikini or Ria Te Kini (c. 1810 – 19 July 1919), also known as Mrs Chicken, was a New Zealand businesswoman, cultural informant and midwife. She is credited as one of the midwives who paved the way for the creation of the Plunket Society. As a Kāi Tahu and Kāti Mamoe woman, she was an informant for ethnographer William Anderson Taylor's work on Kāi Tahu history and early European contact with Māori.