James Arthur Renwick CRSNZ is a New Zealand weather and climate researcher.

He is professor of physical geography at Victoria University of Wellington, specialising in large-scale climate variations.

He was awarded the 2018 New Zealand Prime Minister's Science Prize for Communication by Jacinda Ardern.

[3] Renwick was a Lead Author for the Intergovernmental Panel on Climate Change (IPCC) Fourth[4] and Fifth[5] Assessment Reports, as well as a Co-ordinating Lead Author for the IPCC's Sixth Assessment Report.

He communicates climate science in the context of art through an initiative called Track Zero.