|Japanese name:|| 工藤 有希子|
|English name:||Vivian Kudo|
|Date of birth:||Unknown|
|Relatives:|| Yusaku Kudo (husband)|
Shinichi Kudo (son)
|Nicknames:||The Night Baroness|
|Aliases:|| Yukiko Fujimine (maiden name)|
Fumiyo Edogawa (Fanny Edogawa in the Funimation Dub)
|First appearance:|| Manga: File 51|
Anime: Episode 43
|Appearances:|| Chapters: 71|
|Keyhole number:||Volume 14|
|Japanese voice:||Sumi Shimamoto|
|English voice:||Laurie Steele|
Yukiko Kudo (工藤 有希子 Kudō Yukiko) is the mother of Shinichi Kudo and, along with her husband Yusaku, one of few characters who knows he is Conan Edogawa. She was once a famous actress, but retired after marrying Yusaku. She was also close friends with fellow actress, Sharon Vineyard, both being excellent masters of disguise.
Despite her then-tender years as a student at Teitan High, Yukiko had a prospectively prosperous future in the film industry. Thus it came as a major surprise to the world when, practically out of the blue, she married Yusaku Kudo and retired from acting. She still retains good contacts in the acting and film industry, however, and has since become known as the "Night Baroness" (named after one of her husband's characters) after babbling out some clues provided by Yusaku on a live television show which helped solve a criminal case.
During her acting years, Yukiko went to a famous stage magician and disguise artist to learn the finer arts of disguise for a role she was preparing to play. There she met another actress who would become one of her closest friends, Sharon Vineyard. Until Sharon's (supposed) death, the two women stayed in touch, and Yukiko even attended her funeral, but her appearance was overshadowed by a small scandal involving Sharon's 'daughter', Chris Vineyard. Yukiko has since learned from her son about Chris/Sharon's secret life, a revelation which troubles her deeply. She has since confronted her former friend with her knowledge, partially to know for sure, but also to save the life of Ai Haibara, who was being threatened by the Black Organization.
Despite a certain rivalry for popularity in their high school years, which had culminated in a Miss Teitan Election, Yukiko is also a close friend of Eri Kisaki, and (unlike Eri) finds her daughter Ran Mouri, a perfect match for her son.
 She takes pride in being an excellent actress and a mistress of disguise, able to fool even close friends and family with her skills. She is also willing to pressure Shinichi to practice his role, so he wont embarrass her.
 Plot overview
Yukiko first appearance was disguised as Fumiyo (Fanny in the Funimation Dub) Edogawa, a woman claiming to be Conan's mom.
After having a quarrel with her husband, Yukiko secretly returned to Japan. She then meets Ran and Conan in front of her house. She successfully covered for Conan who Ran suspected at that time. In the Manga she gives the explanation that Conan is "the nephew of the grandfather of the cousin of the daughter of the brother of my uncle," which produces a family tree showing that Conan is Yukiko's fictitious uncle once removed.
 Heiji Hattori vs. Shinichi Kudo: Deduction Battle on the Ski Slopes (Manga: 518-521 and 522, Anime: 490)
Yukiko turns out to be the lady who had been visiting Subaru Okiya at the Kudo house. On the Bell Tree express, with Conan and Subaru's help, she foiled Bourbon and Vermouth's plans to capture and kill Shiho Miyano respectively while also tricking the Black Organization (except for Vermouth) into thinking Sherry died. Her part of the plan involved removing Haibara from danger when she tried to run away, and then challenging Vermouth in order to draw her attention. Yukiko then kept Vermouth occupied, so that she was unaware that she was being tricked until it was too late. At the same time, Yukiko also extracted a promise from Vermouth that she would truly give up on trying to kill Sherry.
Yukiko disguised as Yusaku to attend Macademy Awards. After finishing the job, she returned home to meet Shuichi Akai and disguise him as Subaru Okiya once more. Shuichi had learned to how to apply the disguise himself satisfactorily, which makes Yukiko a little disappointed since she has no reason to meet Shuichi anymore. Conan becomes annoyed that Yukiko liked seeing Shuichi a little too much. Yukiko nearly outed Conan's secret identity as Shinichi in front of the three FBI agents.
 Non-Canon Plot Overview
 Plot exposition
 List of disguises used
Yukiko prefers relatively simple female disguises, with the exceptions being her medusa halloween costume and later taking her husband's place at an awards ceremony. These are the known ones used so far.
 Relationships analysis
 Yusaku Kudo
Not much is known about Yusaku and Yukiko's backstory before they get married. The most notable scene was from 20 years ago, when Yusaku and Yukiko met in a high end restaurant. Yusaku observed a murder crime, quickly solved it and suddenly proposed to a startled Yukiko, which she accepted. Yukiko can be really angry with Yusaku if he has flirtatious behavior, but they truly love each other. Yukiko has also helped her husband's writing career in some ways, by acting as Night Baroness (partner of the main character Night Baron in Yusaku's series), and accepting a writing award in Yusaku's disguise.
 Conan Edogawa / Shinichi Kudo
Shinichi is her son. When Shinichi shrunk into Conan, Yukiko staged a fake kidnapping scheme with Yusaku and Professor Agasa to make Shinichi realize the danger of the organization he was trying to investigate. As a mother, she truly cares for his wellbeing (sometimes too much, much to Conan's annoyance) and assists him when it comes to cases. Nevertheless, their relationship is quite dynamic: Yukiko enjoys teasing Shinichi/Conan; in addition, she sometimes disguises to fool him. In return, Conan often makes sarcastic remarks about Yukiko being old (obasa-san) and retired for many years, which earned him death glares and even physical blows from Yukiko.
 Eri Kisaki
20 years ago from the current timeline, she and Eri were rivals in Miss Teitan, a beauty contest that shook the country. Yukiko had a charming beauty that attracted men, while Eri had a more bookish look, relying her advantage on academic talents. The vote was split at 20000 votes for each before the competition was canceled, with Mouri Kogoro having the last uncounted ticket.
In later years, despite their previous intense competition, the two are actually in good terms with each other, supporting the other party emotionally. On relationships of their children, Shinichi and Ran, Yukiko shows her full support, at one point even calls Ran her future daughter in law; however, Eri is more reluctant. Eri doesn't like Yukiko's hand off approach with Shinichi and constantly reminds Ran to be beware of Shinichi, remarking on her rocky marriage as reference.
 Shuichi Akai
 Sharon Vineyard
 Character popularity
- eBookJapan held a character popularity poll from April 12, 2011 to May 12, 2011 in which readers of Detective Conan (international included) could vote for their favorite character. Yukiko placed 17th in the poll with 37 votes out of the 5,883 that were cast.
- In honor of the release of the 800th manga chapter, Shonen Sunday held a popularity poll/contest containing 91 Detective Conan characters to choose from. Yukiko placed 20th overall with 34 votes.
 Name origin
The name Yukiko Fujimine (藤峰) name comes from Lupin III character Fujiko Mine and actress Yukiko Nikaido (the original voice of Fujiko). Her alias, Fumiyo (文代), comes from Fumiyo Akechi, wife of Rampo Edogawa's Kogoro Akechi.
 Different looks
|“||Hey, you may be looking at my future daughter-in-law.||„|
— Referring to Ran, Episode 286
|“||There's only two reasons for a girl to look at a boy like that: he has something on his face or she likes him.||„|
— Talking to Conan about Haibara, Episode 335
- Aoyama has stated in Super Digest Book 10+ that Yusaku and Yukiko met because Yukiko had been chosen to play the main character of a drama based on one of Yusaku's books.
- In Episode 286, it is revealed that Yukiko has (or had) a California Driver's License. Her ID is 471108628.
 In other languages
 See also
- ^ a b Conan Drill page 58
- ^ Manga Chapter 733: Kaitou Kid and Ryoma's Gunbelt
- ^ Manga Chapter 414: Mama's Rival!?
- ^ Manga Chapter 260: The Memorable Place
- ^ Manga Chapter 342: Golden Apple 2
- ^ Manga Chapter 341: Golden Apple 1
- ^ Manga Chapter 433: The Truth Behind The Mask
- ^ Manga Chapter 818-824: Mystery Train
- ^ Manga Chapter 342: Golden Apple 2
- ^ Aoyama, Gosho (1997-03-18). "File 4" (in Japanese). Detective Conan. 14. Tokyo: Shogakukan. ISBN 4-09-125044-0.
- ^ a b Volume 14, File 8
- ^ a b c d e f g Volume 14, File 4
- ^ a b Volume 14, File 7
- ^ Volume 78, File 5
- ^ a b Volume 78, File 6
- ^ a b File 898 (Volume 85)
- ^ File:Postcard2016 18.jpg (Yukiko calls him "Shu-chan")
- ^ a b Volume 14, File 6
- ^ Episode 621
- ^ "『名探偵コナン』 人気投票結果". eBookJapan. 2011-05-12. http://www.ebookjapan.jp/ebj/special/conan/vote_kekka2.asp. Retrieved on 2011-05-15.
- ^ "Shonen magazine detective conan official poll results published [magazine pic"]. eva. 2012-02-28. http://forum.dctp.ws/index.php?topic=8024.msg651566#msg651566. Retrieved on 2012-02-29.