- Waneta (e) - A Cuthbertson Florabunda sweet pea with orange salmon flowers. Cuthbertson.
- Watermelon (g) - Orange-pink. Shepherd, 2005.
- Wedding Belle (s) - Pink blush on cream. 2007.
- Wedding Day (s) - A large frilly white sweet pea. 2001.
- Welcome (s) - Scarlet.
- White Ensign (s) - An older white sweet pea.
- White Frills (s) - A very frilly, highly scented pure white exhibition sweet pea. Truslove, 2002.
- White Giant (e) - A white Spencer Praecox variety.
- White Leamington (s) - White. Unwin, 1972.
- White Supreme (s) - White, a long time mainstay of exhibitors. B.R.Jones, 1990.
- William (e) - A Cuthbertson Florabunda sweet pea with pink picotee flowers. Cuthbertson.
- Willie's Red (s) - Scarlet.
- Wiltshire Ripple (s) - Maroon stripe.
- Windsor (s) - A superb chocolate maroon sweet pea. Brewer, 1998.
- Wings (s) - Mauve. 1993.
- Winner (s) - Scarlet.
- Winston Churchill (s) - An old crimson sweet pea.
- Winter Elegance (e) - A strain of early flowering sweet peas. Lemon.
- Winter Sunshine (e) - A day neutral series of early flowering cut flower sweet peas. Lemon/Rowland.
- Wisley (s) - Reddish mauve, a synonym of Mount Stewart. Harrod 2001.
- W.J.Unwin (s) - Orange-pink. 1994.
- World's Children (s) - Scarlet, another name for Firecrest.
- Wretham Pink (g) - Light salmon pink old fashioned sweet pea. Morley, 2007.