Nellie Briercliffe (April 1889 – 12 December 1966) was an English singer and actress best known for her performances in the mezzo-soprano roles of the Savoy Operas with the D'Oyly Carte Opera Company.
After playing in the provinces early in her career, Briercliffe joined the D'Oyly Carte, touring for over three years in the Gilbert and Sullivan soubrette roles. She left the company to play in London's the West End, but rejoined D'Oyly Carte for their 1919–20 London season. After this, she played on the West End in musicals and comic plays, with a three-year hiatus from 1924 to 1927, until she finally retired in 1931. She recorded seven of her D'Oyly Carte roles.
Briercliffe was born in April 1889 in Bolton, the daughter of Robert Briercliffe, a solicitor, and his wife Rachael (née Ashton). She had an older brother, Norman (1887–1925). Nellie Briercliffe performed extensively in the British provinces before making her debut in London. In December 1913, she appeared at the Haymarket Theatre in a curtain-raiser, A Dear Little Wife. She also sang in the concert hall.
She joined the D'Oyly Carte Opera Company in October 1914 after Rupert D'Oyly Carte saw her performance at the Haymarket and "was much struck by her vivacity". She was cast immediately in the principal soubrette roles of the Gilbert and Sullivan operas as follows: Hebe in H.M.S. Pinafore, Edith in The Pirates of Penzance, Angela in Patience, Iolanthe in Iolanthe, Melissa in Princess Ida, Pitti-Sing in The Mikado, Phoebe in The Yeomen of the Guard and Tessa in The Gondoliers. When The Sorcerer was revived in 1916, she added the role of Constance. Briercliffe "quickly established herself as a favorite with London audiences" and toured constantly with the company for more than three years.