Samuel Saunders (12 August 1814 – 2 March 1908) was an English social reformer, activist, and entrepreneur. He was deeply involved in several 19th-century reform movements, including the anti-slavery campaign, the Anti–Corn Law League, and municipal reform. Saunders also advocated for temperance, vegetarianism, peace, hydrotherapy, homeopathy, and against vaccination. He worked as a master miller, farmer, manufacturing chemist, and operated a fruit preservation business.

Samuel Saunders born on 12 August 1814, at Russel Mill, Market Lavington. He was the son of Amran Edward Saunders (1779–1849), a grain merchant and miller, and his wife Mary Ann (née Box; 1788–1874), who had four sons and six daughters. His siblings included Mary Bayly (1816–1899), temperance activist and writer; Alfred Saunders (1820–1905), farmer, social reformer, and activist; and William Saunders (1823–1895), newspaper proprietor and Member of Parliament for Hull and Walworth. His nephew was Samuel Saunders (1857–1943), journalist and newspaper editor, and his niece was Sarah Page, teacher, feminist, reformer, and politician.

Saunders began his reform work and activism at a young age. By 20, he was involved in the Anti-Slavery Society, the Anti-Corn Law League, and advocacy for the Municipal Reform Bill. Saunders became a teetotaler in 1830 and became a member of the British and Foreign Temperance Society in the same year. He successfully enlisted his mother, two sisters and three brothers to the cause. In 1832, during the Bristol riots, he was sworn in as a special constable.

Saunders adopted vegetarianism in 1837 after meeting Isaac Pitman and reading works by Sylvester Graham. He worked in the vegetarian cause with Pitman in Bath around 1847.

Saunders was also active in the peace movement, joining the Peace Society in 1832. Additionally, he was involved in the anti-vaccination movement and promoted hydrotherapy and homeopathy, claiming to have achieved cures through these methods.

Saunders worked as a master miller and farmer. In 1848, Saunders' father divided the family grain merchant business into two: one branch in Bath, which he ran alongside his brother Edward, and a new business in Market Lavington, operated by Samuel. Samuel's business operated from 1848 to 1852. While living in Bath, he transitioned into manufacturing chemistry. Saunders later turned to fruit farming and, in 1868, founded a fruit preservation business in Market Lavington that eschewed the use of artificial colourings and chemicals. His efforts were said to have influenced the "tone of the village".

Saunders assisted his brother, William, in establishing several publications, including the Western Morning News in Plymouth, the Eastern Morning News in Hull, and the Central Press in London. He also contributed to the Central News following the government’s takeover of the telegraph service.

Saunders established a Working Men's Hall in Market Lavington and built his own home with a focus on ventilation and hygiene.