• Rebel Galaxy Outlaw: Juno's husband was murdered. Now, she's looking to do some killing of her own. (She's searching for her husband's killer specifically)
• Cocaine Coast: Braulio's wife, Maruxa, does everything she can to get her husband's killers to justice.
• The Bride Wore Black: Julie's husband was shot on the day of her marriage. She seeks revenge and she kills one by one the five men who were involved in this murder.
• Freedom Fighters (2018): Doll Girl used to be a pacifist like her husband, the modern Doll Man. After his death at the hands of the Nazis, she swore off pacifism and dedicated her life to killing Nazis.
• The Dragonslayers: Grizelda thinks she's this, seeking revenge on the king for the loss of her husband, who'd been drafted into his armies and never returned, and son, thinking King Mildred had burned her cottage with the child inside. In fact, both are alive and well - Brian was rescued from the burning house (which had been set on fire by enemy soldiers) by King Mildred and his men, but Grizelda didn't know this and abandoned the destroyed house in favor of finding a witch to teach her what she needed. Later, Elizar (whom Grizelda assumed had died in the war) returned to find his home destroyed. Thinking his wife and son were dead, he went wandering and eventually found employment at King Mildred's castle. Eventually, all three are reunited at the end of the book after Grizelda, having recognized Brian as her son, reveals their relationship and how she recognized him... and Elizar is shocked because his son had the same birthmark as hers.
• Criminal Case: World Edition - Case 08: Death in the Desert: Izzah Farid, the wife of one of the workers that perished in the Sand Oil accident, has been helping The Sword by distributing weapons in their name to rebels over the Sahara, intending to start a revolution against foreigners since her husband was killed due to them.
• Xabiarverse Ethereal Collective: The Synthesized killed the Battlemasters of the Imperial Sanctum, of which one was her mate. Her motivation to join the Collective stems from the opportunity to avenge him through the death of all Synthesized.
• Warrior Cats ThunderClan Warriors and Apprentices: She reacts to Stemleaf's death with pure rage and vows to make sure the impostor pays with his life.
• Thou Shalt Not Die: She wants to get to the bottom of the Shirotae Project because she knows this conspiracy is responsible for killing her husband for investigating them.
• The Lunar Rebellion: After Radiant Day's death, she becomes this to his killer Dusk Charger. Deconstructed later on that, when Dusk Charger's Fake Defection is revealed, it blinds her to the larger battle going on while being too angry to think of her unborn foal and surrender when she is clearly outnumbered and outmatched and her opponent is more focused on getting her to stop fighting with no intent to harm her. Sure enough, when she is about to kill Dusk Charger, his brother Flash has to save him by impaling her chest from behind, killing her.
• TearRing Saga: She despises Vega for murdering her boyfriend seven years ago. However, she is aware that she will never surpass him in combat so she pleads with, and seduces, Shigen to take her place. She eventually gives up her vengeance when she realizes that her boyfriend would never accept it and begs Holmes to break their duel to the death.
• Mesopotamian Mythology - Tiamat: Was very determined to avenge Abzu's (her lover) death.
• Deadly Class - Amante: She brutally tortures Maria in retribution for Maria's actions against her husband and son.
• Crash Canyon: Mrs. McGurk is pissed off at that bear for eating her husband and has dedicated the remainder of her days to making him suffer every single minute for it.
• Battletech Inner Sphere: Following the death of Justin Xiang, her response was to make her way into the Capellan palace and kill her sister and her sister's lover in revenge.
• The Nightingale (2019): She's out to kill the men who murdered her entire family and gang-raped her. — from Crusading Widow redirect
• Another Eden Antagonists: Betrayed King Palsifal by killing his entire family because her husband was caught in one of the king's wars and killed. — from Crusading Widow redirect
• Ace Attorney: Witnesses and Other Characters - Spirit of Justice - Beh'leeb: After Tahrust's trial, she takes on a more proactive role in the revolution. — from Crusading Widow redirect
• A Song of Ice and Fire - House Stark - Catelyn Stark: It begins with Ned's death and it only goes downhill from there. Thinking all her children but Sansa have died, she has made it her purpose to destroy everything associated with the Freys and Lannisters. — from Crusading Widow redirect
• A Game of Vengeance and Justice - Catelyn Stark: Is determined to avenge her husband's death. She succeeds.— from Crusading Widow redirect
• The Space Bar - Cilia: Seeking to avenge the death of one of her mates at the hands of the Akro Mati. — from Crusading Widow redirect
• Firefly – Browncoats - Maude: Her husband was killed during the buyout dispute and she’s determined to get back at the alliance any way she can.
• Baldur's Gate: Main Party Members - Jaheira: A more heroic example in BGII. Even though she expresses concern for Imoen's plight, one of her main motivations for seeking out Irenicus is to make him pay for Khalid's death.
• Love, Death & Robots: "Suits" - Helen: After Jake dies she whips out a shotgun and starts shooting DBs herself.
• Hunter: The Reckoning - Avengers: (Crusading Widower or Vengeful Widow) A very common archetype for Avengers — the only people more likely to become Avengers are people who've lost a parent or a child.
• Psycho-Pass: Sinners of the System - Rin: Rin's responsible for using the combat drone on the Japanese MOD building and the MOFA Kyushu Immigration Center to target certain VIPs.
• Red Dead Redemption 2 Van Der Linde Gan - Expy: Sadie is one of Film.Hannie Caulder, right down to their origin story, having lost their husband and becoming a Vengeful Widow to hunt down her husband's killers.
• Wonder Woman: Villains: (Pre-Crisis) The Nazis killed her husband Gottfriend before kidnapping her daughter Gerta and holding the young girl hostage to ensure Paula's cooperation. Once Gerta was safe Paula dedicated the rest of her life to helping the Nazis' enemies and developing much more fantastic new inventions with her knowledge of science than she'd ever done for the Nazis.
• Wildflower (2017) - Lily: In the penultimate episode, Diego's death is the final straw for Lily, and she decides to confront Julio and Emilia for the last time.
• The Following: Mallory joined the first random killing spree to avenge Lance, her boyfriend.

Explicitly a Villain or Anti-Hero

• Final Fantasy XII: One of the defining motivations Ashe has is the death of her husband and father and is haunted by the ghost of her husband at multiple points during the game. This drives her to vengeful extremes, dehumanizing the Empire and resistent to a peaceful resolution for her people.
• 24: Live Another Day: Margot Al-Harazi seeks revenge on President James Heller for ordering the drone strike that killed her terrorist husband.
• Evernight - Mrs Bethany: She's revealed to be this in the last book. She became a vampire solely because it was the only way for her to avenge the betrayal and murder of her beloved husband
• Agents of Mayhem: Red AISHA wanted to take out M.A.Y.H.E.M. after they kill her groom on their wedding barge. She starts with the smear campaign portraying him as an innocent victim of M.A.Y.H.E.M. and then the AISHAs put out a musical single that's literally killing its listeners. Things escalate until Red AISHA finally has her Villainous Breakdown. In the end, Purple AISHA is the group's only survivor. (Blue AISHA was deleted by Red AISHA, Yellow and Green AISHAs were shoved into robot bodies that got destroyed by M.A.Y.H.E.M. when they were forced to fight or die, and Red AISHA is destroyed when her giant robot prototype is destroyed).
• Kitsune No Ken Fist Of The Fox Akatsuki - Konan: Her husband's death, and the miscarriage she suffered from the stress of that event, led to her joining Akatsuki to get revenge

Should be on Crusading Widower as it's about a male character

• Assault on Wall Street: Jim, specifically because his wife committed suicide from financial problems that were caused by corrupt Wall Street hedge fund managers, bankers, brokers and lawyers. He shows Stancroft a photo of his late wife telling them that it's his fault she's dead.
• Parasite (2019) - Geun-se: Stabs Ki-jeong and unsuccessfully tries to also stab Chung-sook with a kitchen knife as revenge for Moon-gwang's death
• Desperate Housewives - Other Characters - Dave: He seeks to avenge the death of his wife and daughter.

Other

• What We Do In The Shadows 2019 Humans: Vengeful Roommate. Shanice was Jenna's roommate and one of her only friends. When Jenna suddenly disappeared, Shanice assumed that the vampires were responsible, and thus has vowed to avenge Jenna by killing them, not realizing that Jenna was turned willingly. — wasn't her lover or spouse

Partial

• Into the Woods: Is (reasonably) furious with Jack for mugging then murdering her husband. — doesn't say what she does in retaliation
• Mass Effect Andromeda Multiplayer Characters: The female Infiltrator, who lost her husband and child in a botched robbery. — from Crusading Widow redirect — doesn't say what she does or who she targets
• Game of Thrones - House Martell - Ellaria Sand: Seeking revenge for Oberyn's death in Season 5. from Crusading Widow redirect — doesn't say what she does or who she targets
• Magnificent Century Imperial Family - Hatice: After Ibrahim's execution, she becomes even more hostile against Hürrem. — doesn't say what she does or who she targets

ZCE

• Tales From The Crypt S 5 E 3 Forever Ambergris: Bobbi
• Nibelungenlied: Kriemhild may be the ultimate example. (She's trying to avenge her husband by punishing his murderers)
• The Dark Knight Trilogy: Gotham City Administration: When Joker transforms him into Two Face.
• Hellblade: Senua's Sacrifice: Senua is this, of the "bring their lover back" variety. — from Crusading Widow redirect
• Deadpool: Supporting Characters - Shiklah: Becomes this in Mrs. Deadpool and the Howling Commandos because I was dead temporarily. — from Crusading Widow redirect
• Yakuza - Yayoi: Enough to challenge the Dragon of Dojima directly and armed with a sword.
• Tekken - Anna: Why she's after Nina in Tekken 7.