Piers is an old English Christian name, and has the same origins as Peter.
People with the first name include:
Piers Akerman (born 1950), Australian journalist, conservative commentator and columnist
Piers Anthony (born 1934), Anglo-American fantasy/science fiction author known for his Xanth series of novels
Piers Butler, 8th Earl of Ormond (c. 1467–1539)
Piers Claughton (1814–1884), British Anglican bishop, Archdeacon of London and Chaplain-General of Her Majesty's Forces
Piers Courage (1942–1970), English racing driver
Piers Edgecumbe (c. 1609–1667), English politician
Piers Edgcumbe, 5th Earl of Mount Edgcumbe (1865-1944), British soldier
Piers Gaveston, 1st Earl of Cornwall (c. 1284-1312), a favourite of King Edward II of England
Piers Gough (born 1946), British architect
Piers Haggard (born 1939), British television and film director
Piers Lane (born 1958), Australian concert pianist
Piers Mackesy (born 1924), British military historian
Piers McDonald (born 1955), Canadian politician and trade unionist
Piers Merchant (1951–2009), British politician
Piers Morgan (born 1965), British tabloid newspaper editor, judge on TV talent shows, CNN host
Piers Paul Read (born 1941), English novelist, historian and biographer
Piers Sellers (born 1955), Anglo-American meteorologist and NASA astronaut
Piers Wenger (born 1972), British television producer
People with the last name include:
Dennis Piers (1929–2005), South African cricketer
Desmond Piers (1913–2005), Royal Canadian Navy rear-admiral
Harry Piers (1870–1940), Canadian historian
Henry Piers (1568–1623), Anglo-Irish Member of Parliament, administrator and writer
Sir Henry Piers, 1st Baronet (1629–1691), Anglo-Irish soldier and antiquarian
John Piers (1522/3–1594), Archbishop of York
Sir John Piers, 6th Baronet (1772–1845), notorious rake and duellist
Julie Piers (born 1962), American golfer
Sarah Piers (died 1719), English literary patron, political commentator and poet
William Piers (c. 1580–1670), British Anglican bishop and Vice-Chancellor of Oxford University
William Piers (constable) (c. 1510–1603), constable of Carrickfergus
Fictional characters include:
the title character of Piers Plowman, a Middle English allegorical narrative poem by William Langland