Wether Down
{{Short description|Hill in Hampshire, England}}
{{Use dmy dates|date=September 2019}}
{{Infobox mountain
| name = Wether Down
| photo = Wether Down - geograph.org.uk - 228343.jpg
| photo_caption = View from Wether Down towards Betterton Down
| elevation_m = 234
| elevation_ref = [http://www.viewfinderpanoramas.org/prominence.html Summit Listings by Relative Height] by Mark Jackson, compiled by Jonathan de Ferranti. Accessed on 1 Apr 2013.
| prominence_m = 37
| parent_peak = Butser Hill
| listing =
| location = Hampshire, England
| range = South Downs
| coordinates = {{coord|50.9733|-1.0396|type:landmark_dim:3000_region:GB|format=dms|display=inline,title}}
| grid_ref_UK = SU675197
| topo = OS Landranger
| type =
| age =
| last_eruption =
| first_ascent =
| easiest_route =
}}
Wether Down is one of the highest hills in the county of Hampshire, England, and in the South Downs, rising to {{convert|234|m|ft}} above sea level.
Wether Hill is largely treeless and there is a trig point and transmission mast at the summit. Cross dykes and a long barrow in the vicinity provide evidence of prehistoric settlement in the area.Ordnance Survey 1:50,000 Landranger series.