Second civil war
Second civil war, Second Civil War, or civil war II may refer to

Historical wars
 Second English Civil War (1648–1649)
 Second Congo War (1998–2002), also referred to as a civil war
 Second Liberian Civil War (1999–2003)
 Second Libyan Civil War (2014-2020)
 Second Sudanese Civil War (1983–2005)
 Republic of the Congo Civil War (1997–1999), also known as the Second Republic of the Congo Civil War

Fictional or hypothetical wars
 The Second Civil War, 1997 made-for-television film
 Civil War II, a Marvel Comics comic book crossover storyline

See also
 First Civil War (disambiguation)
 Civil War (disambiguation)