Holwaya is a genus of fungi in the family Bulgariaceae.

Holwaya is monotypic,[1][2] containing the single species Holwaya mucida, which was originally named Bulgaria ophiobolus by Job Bicknell Ellis in 1883,[3] and later transferred to the newly created Holwaya by Pier Andrea Saccardo in 1889.

[4] The genus name of Holwaya is in honour of Edward Willet Dorland Holway (1853-1923), who was an American botanist (Mycology) and Banker.

[5] The genus was circumscribed by Saccardo in Syll.

Holwaya mucida has an anamorph known as Crinula caliciiformis.