Achaicus may refer to:
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Lucius Mummius Achaicus
Lucius Mummius (2nd century BC) was a Roman Republic, Roman statesman and general. He was consul in the year 146 BC along with Gnaeus Cornelius Lentulus (consul 146 BC), Gnaeus Cornelius Lentulus.
Mummius was the first of his family to rise to ...
, a 2nd-century BCE Roman statesman and general
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Achaicus of Corinth
Saint Achaicus of Corinth ( , "belonging to Achaia") was a Corinthian Christian saint who according to the Bible, together with Saints Fortunatus and Stephanas, carried a letter from the Corinthians to Saint Paul, and from Saint Paul to the C ...
, who according to the Bible, carried a letter from the Corinthians to St. Paul, and from St. Paul to the Corinthians
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