The Second Wizarding War refers to the conflicts stemming from the Dark Wizard Lord Voldemort’s second rise to power after his return in 1995. Voldemort and his followers, the Death Eaters, waged  a violent campaign across both the wizarding and Muggle communities, seeking to topple the Ministry of Magic and subjugate Muggle-borns, with the eventual goal of conquering the entire wizarding world, and the Muggle world along with it.

 Harry Potter, prophesied as the "Chosen One" capable of bringing an end to Voldemort's power, took an active role in this war, alongside his peers in Dumbledore's Army and the members of the Order of the Phoenix. The Second War technically began on 24 June, 1995, though was not officially announced by the Ministry until nearly a year later on 17 June, 1996, and ended on 2 May, 1998, at Hogwarts School of Witchcraft and Wizardry, after the death of the Dark Lord.

Combatants-

- The Late Rufus Scimgeour

- The Late Albus Dumbledore

- The Late Lord Voldemort

- The Late Bellatrix Lestrange

- Harry Potter

- Minerva McGonagall

- The Late Alastor Moody

- Kingsley Shacklebolt

- Bane

- Kreacher

- The Late Dobby

- Fenrir Greyback

- Lucius Malfoy (reformed)

- The Late Severus Snape

- The Order of the Phoenix

- Dumbledore's Army

- Death Eaters

- Ministry of Magic (both under Rufus Scrimageour and Pius Thicknese)

- Hogsmeade militia

- Centaurs

- House-elves

- Threstrals

- Ghosts

- Buckbeak

- Grawp

- Giants

- Dementors

- Acromantulas

- Werewolves

- Inferi

- Snatchers