* 1863 – Linton Hope, English naval architect and yachtsman ( d. 1920 )

* 1863 – Augustus Edward Hough Love, English mathematician ( d. 1940 )

* 1935 – Lucy, Lady Duff-Gordon, English fashion designer ( b. 1863 )

* 1921 – Arthur Mold, English cricketer ( b. 1863 )

Matthew Gibson has shown that LeFanu used Dom Augustin Calmet's Treatise on Vampires and Revenants, translated into English in 1850 as The Phantom World, the Reverend Sabine Baring-Gould's The Book of Were-wolves ( 1863 ), and his account of Elizabeth Bathory, Coleridge's Christabel, and Captain Basil Hall's Schloss Hainfeld ; or a Winter in Lower Styria ( London and Edinburgh, 1836 ).

* John Young ( cricketer, born 1863 ) ( 1863 – 1933 ), English cricketer

* 1863 – Lucy, Lady Duff-Gordon, English fashion designer ( d. 1935 )

* 1863 – Alec Hearne, English cricketer ( d. 1952 )

* 1811 – William Makepeace Thackeray, English author ( d. 1863 )

* 1863 – Aubrey Smith, English cricketer and actor ( d. 1948 )

* 1863 – Arthur Mold, English cricketer ( d. 1921 )

* 1944 – Arthur Quiller-Couch, English writer ( b. 1863 )

* 1863 – Andrew Stoddart, English cricketer ( d. 1915 )

* 1863 – Bob Fitzsimmons, English boxer ( d. 1917 )

* 1863 – Austen Chamberlain, English statesman, recipient of the Nobel Peace Prize ( d. 1937 )

The legal doctrine was first formulated by Baron Pollock in the 1863 English case Byrne v Boadle.

* October 5 – William Heinemann, English publisher ( b. 1863 )

* March 17 – Austen Chamberlain, English statesman, recipient of the Nobel Peace Prize ( b. 1863 )

* April 27 – Arthur Mold, English cricketer ( born 1863 )

* April 22 – Henry Royce, English car manufacturer ( b. 1863 )

* Augustus Egg ( 1816 – 1863 ), English artist

William Makepeace Thackeray (; 18 July 1811 – 24 December 1863 ) was an English novelist of the 19th century.

* Frederick Parkes Weber ( 1863 – 1962 ), English dermatologist ; son of Hermann David Weber

The first was the English Alpine Club ( founded in the winter of 1857 – 1858 ), followed in 1862 by the Austrian Alpine Club ( which in 1873 was fused, under the name of the German and Austrian Alpine Club, with the German Alpine Club, founded in 1869 ), in 1863 by the Italian and Swiss Alpine Clubs, and in 1874 by the French Alpine Club, not to mention numerous minor societies of more local character.

* 1863 – Arthur Dehon Little, American chemist and chemical engineer ( d. 1935 )

* 1863 – Charles Martin Hall, American chemist ( d. 1914 )

* Leo Baekeland, chemist and inventor of Bakelite ( 1863 – 1944 )

Leo Hendrik Baekeland ( Sint-Martens-Latem ( near Ghent ), November 14, 1863 – February 23, 1944 ) was a Belgian chemist who invented Velox photographic paper ( 1893 ) and Bakelite ( 1907 ), an inexpensive, nonflammable, versatile, and popular plastic, which marks the beginning of the modern plastics industry.

Vin Mariani ( French: Mariani's wine ) was a tonic and patent medicine created circa 1863 by Angelo Mariani, a French chemist who became intrigued with coca and its economic potential after reading Paolo Mantegazza ’ s paper on coca's effects.

* David Boswell Reid ( 1805 – 1863 ), Scottish physician, chemist and inventor

Charles Martin Hall ( December 6, 1863 – December 27, 1914 ) was an American inventor, music enthusiast, and chemist.

After one of the Austrian factories blew up in 1862, Thomas Prentice & Company began manufacturing guncotton in Stowmarket in 1863 ; and British War Office chemist Sir Frederick Abel began thorough research at Waltham Abbey Royal Gunpowder Mills leading to a manufacturing process that eliminated the impurities in nitrocellulose making it safer to produce and a stable product safer to handle.

* Paul Walden ( 1863 – 1957 ), a Riga-born chemist

Ferdinand Reich ( 19 February 1799 – 27 April 1882 ) was a German chemist who co-discovered indium in 1863 with Hieronymous Theodor Richter.

Paul Walden (; 1863 – 1957 ) was a Latvian-German chemist known for his work in stereochemistry and history of chemistry.

* Charles Martin Hall ( 1863 – 1914 ), chemist

In 1863 Stinde received an appointment as consulting chemist to a large industrial undertaking in Hamburg ; but, becoming editor of the Hamburger Gewerbeblatt, he gradually transferred his energies to journalism.

Eilhard Mitscherlich ( 7 January 1794 – 28 August 1863 ) was a German chemist, who is perhaps best remembered today for his law of isomorphism ( 1819 ), which states that compounds crystallizing together probably have similar structures and compositions.

But what the elements could not do was seriously threatened when Brigadier General William E. ( Grumble ) Jones reached Philippi while on the famous Jones-Imboden raid in May, 1863.

The earliest known written evidence of the title is from the November 3, 1863, diary entry of William Howard Russell, in which he referred to gossip about " the First Lady in the Land ," referring to Mary Todd Lincoln.

* 1863 – William Grant Stairs, Canadian-English soldier and explorer ( d. 1892 )

* 1900 – American Civil War: Sergeant William Harvey Carney is awarded the Medal of Honor, for his heroism in the Assault on the Battery Wagner in 1863.

* Lytle, William Haines ( 1826 – 1863 ), Antony and Cleopatra

* 1863 – William Sulzer, American lawyer and politician, 39th Governor of New York ( d. 1941 )

Soon after their marriage on June 15, 1862, the couple moved to San Francisco, California, where Phoebe gave birth to their only child, William Randolph Hearst, on April 29, 1863.

* July 29 – Ernest William Christmas, Australian painter ( b. 1863 )

* August 14 – William Randolph Hearst, American newspaper publisher ( b. 1863 )

* May 23 – Sergeant William Harvey Carney is awarded the Medal of Honor for heroism in 1863, as the first African American to have been awarded this medal.

* February 27 – William Sherman Jennings, Governor of Florida ( b. 1863 )

* June 9 – William Grant Stairs, Canadian explorer ( b. 1863 )

* July 18 – William Makepeace Thackeray, British novelist ( d. 1863 )

* Aladdin, or, The wonderful lamp, by Adam Gottlob Oehlenschläger, William Blackwood & Sons, 1863

In the spring of 1863 Garfield returned to the field as Chief of Staff for William S. Rosecrans, commander of the Army of the Cumberland ; his influence in this position was greater than usual – with duties extending beyond mere communication to actual management of Rosecrans's army.

In March 1863 his father William George, who had been a teacher in Manchester and other cities, returned to his native Pembrokeshire because of failing health.

With his brother William Conant Church he established The Army and Navy Journal in 1863, and Galaxy magazine in 1866.

In the early spring of 1863, Longstreet suggested to Lee that his corps be detached from the Army of Northern Virginia and sent to reinforce the Army of Tennessee, where Gen. Braxton Bragg was being challenged in Middle Tennessee by Union Maj. Gen. William S. Rosecrans, Longstreet's roommate at West Point.

William Grant Stairs ( 1 July 1863 – 9 June 1892 ) was a Canadian-British explorer, soldier, and adventurer who had a leading role in two of the most controversial expeditions in the history of the colonisation of Africa.

* John Neilson Gladstone ( 1807 – 1863 ), MP and brother of William Ewart Gladstone

* William Sherman Jennings ( 1863 – 1920 ), American lawyer, judge, and politician

A dictionary of the Bible by Sir William Smith published in 1863, notes the Hebrew word for peacock Thukki, derived from the Classical Tamil for peacock Thogkai joins other Classical Tamil words for ivory, cotton-cloth and apes preserved in the Hebrew Bible.