Patrick, Pat, or Paddy Campbell may refer to:

• Mrs Patrick Campbell (1865–1940), British stage actress
• Patrick Campbell, 3rd Baron Glenavy (1913–1980), Irish-born British journalist, humorist and television personality
• Pat Campbell (broadcaster) (died 2021), American talk radio host
• Pat Campbell (cartoonist), Australian cartoonist

• Patrick Campbell (British Army officer, born 1684) (1684–1751), British Army General and Member of Parliament
• Patrick Campbell (Royal Navy officer) (1773–1841), British Royal Navy officer
• Patrick Campbell (British Army officer, born 1779) (1779–1857), British Army Major General, British agent and Consul General in Egypt
• Patrick Campbell (INLA member) (1977–1999), Irish National Liberation Army volunteer who was murdered by drug dealers

• Paddy Campbell (born 1974), Irish Gaelic footballer
• Pat Campbell (lacrosse) (born 1977), Canadian lacrosse player
• Patrick Campbell (rugby union) (born 2002), Irish Gaelic footballer and rugby union player

• Patrick T. Campbell (1871–1937), American educator
• Patrick J. Campbell (1918–1998), American labor leader

• Patrick Campbell Rodger (1920–2002), Anglican clergyman
• Patrick Campbell-Lyons (born 1943), composer and musician