Katherine (sometimes known as Katharine) Harriot Duncombe Pleydell-Bouverie (7 June 1895 – 1985) was a pioneer in modern English studio pottery, known for her wood-ash glazes.

She remained at the Leach Pottery for a year and learnt alongside Michael Cardew, Shoji Hamada and Tsuronosuke Matsubayashi (known as Matsu).

[1] In 1925, Pleydell-Bouverie started her first pottery with a wood-fired kiln in the grounds of her family estate at Coleshill, where she was joined for eight years by fellow potter Norah Braden.

[3][6] After World War II, Pleydell-Bouverie sold her ceramic work at low prices, possibly because she had private means.

[8] In a letter to Bernard Leach written 29 June 1930, she said "I want my pots to make people think, not of the Chinese, but of things like pebbles and shells and birds' eggs and the stones over which moss grows.

"[9] Pleydell-Bouverie was judgmental of the aesthetic of some of her contemporaries such as Charles and Nell Vyse as too 'competently commercial' rather than evoking the appearances of 'things like pebbles and shells and birds' eggs'.