Mary Jane Seaman, married name Mrs. Chippendale (1837?, Salisbury – 26 May 1888, Camberwell) was an English actress.

Under the name Miss Snowdon she made her first London appearance playing Mrs Malaprop in The Rivals at the Haymarket Theatre in 1863.

She took a company to Australia, on her return succeeded Mrs Stirling as Martha in Faust at the Lyceum, and accompanied Henry Irving to the United States.

[2] She died on 26 May 1888 at Peckham Road, Camberwell, and was buried in St Pancras and Islington Cemetery.

Attractive and buxom, she won acceptance as Dowager Lady Duberly in George Colman's The Heir at Law, Mrs Candour in Sheridan's The School for Scandal, and Mrs. Hardcastle in Goldsmith's She Stoops to Conquer.