Sir Richard Baggallay PC (1816 – 1888) was a British barrister, politician, and judge. After serving as Attorney-General under Benjamin Disraeli from 1874 to 1875, Baggallay was appointed a Lord Justice of Appeal in Chancery (Lord Justice of Appeal from 1877), serving until his resignation in 1885.

Baggallay was one of the sons of Richard Baggallay, of Stockwell, a member of the Merchant Taylors' Company and a significant warehouseman of the City of London (d.1870, will sworn at under £30,000).^[1] He attended Gonville and Caius College, Cambridge where he graduated with a BA in 1839 followed by an MA in 1842.^[2] He was called to the Bar, Lincoln's Inn, in 1843.

Bagallay sat as a Conservative Party Member of Parliament (MP) for Hereford from 1865 to 1868.^[3] He was knighted on 14 December 1868 after losing his seat, but was re-elected in 1870 as MP for Mid Surrey, holding the seat until 1875.^[4] He served briefly as Solicitor-General under Benjamin Disraeli in 1868 and again in 1874, and as Attorney-General under Disraeli from 1874 to 1875. In 1875, he was sworn of the Privy Council^[5] and appointed to the newly established Court of Appeal, where he served until his resignation in 1885. He thereafter occasionally sat in the Privy Council until his death in 1888.

He married, on 25 February 1847, Marianne, youngest daughter of Henry Charles Lacy of Withdean Hall, Sussex, by whom he left children.^[7]

In later years Baggallay suffered from poor health and died while convalescing at 10 Brunswick Square, Hove, Sussex. He was buried at South Metropolitan Cemetery at Norwood.

Aside from certain of his judicial co-decisions and occasional dissents which proved to be of long importance - decisions of the Court of Appeal have binding authority unless and until reshaped at that level, above or by statute - his probate was re-sworn in 1890 leaving assets of £65,491 (equivalent to about £7,700,000 in 2021).^[1] He left executors as his widow at 55 Queens Gate, South Kensington and three sons, who lived at their houses in Elm Park Road, Chelsea and Onslow Square.^[1]