Meet Eikichi Onizuka a 22-year-old ex-biker. He's crude, foul-mouthed, and has a split-second temper. His unlikely goal: to be the Greatest High School Teacher in the World! Of course, the only reason he wants to be a teacher is so he can try to score with the hot students. Before he can become a full instructor, he's got to work as a student teacher to earn his credentials. Onizuka may think he's the toughest guy on campus, but when he meets his class full of bullies, blackmailers, and scheming sadists, he'll have to prove it.

Note: Won the 22nd Kodansha Manga Award for Best Shounen Manga.

Walking home from school one day, Noriko is innocently caught up in a terrorist bombing. Rather than being blown to bits, she finds herself transported to another world; a world in which darkness seems on the rise, as its powers desperately search for a being known as the Awakening whom it is said will awaken the Sky Demon. She finds this new world to be dangerous and overwhelming, and Noriko has little choice but to throw her lot in with the mysteriously powerful man she encounters upon her arrival. The enigma of this world and her role in it will gradually unfold, but first things first: Noriko must learn their language!

In 2004, this manga won the 35th annual Seiun Award for best science fiction comic.

A regular school boy, Hikaru Shindo stumbles upon an old GO board while looking through his grandpa's old storage room for something worth money. From inside the board came an old spirit named Sai who once dedicated his life to GO. Together, Sai continues to search for the move people call "The god's hand" while Hikaru slowly began interest in this ancient game and walks down the road of GO.

Won the Shogakukan Manga Award in 2000.

Sana Kurata, a child actress, faces many problems in her classroom, including a major one - her bullying classmate, Akito Hayama. Sana's outgoing and friendly nature leads her to work towards correcting all of the problems around her. Her 'meddling' irritates Hayama but at the same time captivates him, just as Hayama's gloomy nature irritates Sana and compels her to change him. As these two opposites attract each other, they face many hardships which bring them closer to a mutual understanding.

This manga won the 1998 Kodansha Manga Award for shōjo.

From Del Rey:

Najika is a great cook and likes to make meals for the people she loves. But something is missing from her life. When she was a child, she met a boy who touched her heart–and now Najika is determined to find him. The only clue she has is a silver spoon that leads her to the prestigious Seika Academy. At Seika she meets two brothers Daichi and Sora, could one of them be the boy from her childhood?

Won the Kodansha Manga Award for Children's Manga in 2006.

The son of a famous pianist, music student Shinichi Chiaki dreams of studying abroad and becoming a conductor like his mentor. Unfortunately, his fear of flying grounds his lofty plans! As he watches other classmates achieve what he has always wanted, Shinichi wonders if he should quit music altogether.
Then one day he meets fellow student Megumi Noda, also known as Nodame. This oddball girl cannot cook, clean, or even read a music score, but she can play the piano in incomparable Cantabile style. And she teaches Chiaki something that he has forgotten: to enjoy his music, no matter where he is.

Winner of the Kodansha Manga Award for Shoujo in 2004.

Haunted by a space flight accident that claimed the life of his beloved wife, Yuri finds himself six years later as part of a team of debris cleaners on a vessel called the Toy Box charged with clearing space junk from space flight paths. The team consists of Hachimaki, a hot shot debris-man with a sailor's affinity for the orbital ocean; Fee, a chain-smoking tomboy beauty with an abrasive edge; and Pops, a veteran orbital mechanic whose avuncular presence soothes the stress of the job.

Note: Won the Seiun Award in 2002.

England. France. Germany. What common thread binds these three nations together? Answer: each is famous for producing unique, distinctive, delicious bread.

But what of the island nation of Japan, home to rice and delicacies of the sea? Is there not a doughy, gastronomic delight they can claim as their own? The answer is no...until now!

Kazuma Azuma, a 16-year-old boy blessed with otherworldly baking powers, has taken it upon himself to create Ja-pan, the national bread of the land of the rising sun!

Note: Won the 49th Shogakukan Manga Award in the Shounen category.

Winner of the Outstanding New Author award in the 7th Chiba Tetsuya Awards and Fukumoto Nobuyuki's very first award is about a rowdy, alcoholic high schooler who finds love in a childhood friend.

Keitaro has had great difficulty getting into the university of his choice and no luck in meeting women. In a desperate effort to go into seclusion and study for his entrance exams, he volunteers to take over running his grandmother's hotel. His plans are ruined when he discovers that the "hotel" is actually an all-girls dormitory and some serious distractions ensue.

Note: Won the 25th Kodansha Manga Award for Best Shounen in 2001.

Yusuke Urameshi was a tough teen delinquent until one selfless act changed his life... by ending it. When he died saving a little kid from a speeding car, the afterlife didn't know what to do with him, so it gave him a second chance at life. Now, Yusuke is a ghost with a mission, performing good deeds at the behest of Botan, the ferrywoman of the River Styx, and Koenma, the pacifier-sucking judge of the dead.

Note: Won the Shogakukan Manga Award for shounen in 1993.

The hilarious misadventures of the "Sket Dan"; a couple of high schoolers who help out people as part of their club activity: Himeko, the hot-headed ex-delinquent with a soft spot for cute things and a taste for strange food; Switch, the brainy otaku who only talks via a computerized speech-application; and Bossun, the atypical leader of this looney bunch, with the amazing power to... concentrate very hard!

Sket Dance won the 55th annual Shogakukan Manga Award in 2009 for best shounen manga.

Kagome is a modern Japanese high-school girl. Never the type to believe in myths and legends, her world view dramatically changes when, one day, she's pulled out of her own time and into another! There, in Japan's ancient past, Kagome discovers more than a few of those dusty old legends are true, and that her destiny is linked to one legendary creature in particular--the dog-like half-demon called Inuyasha! That same trick of fate also ties them both to the Shikon Jewel, or "Jewel of Four Souls." But demons beware...the smallest shard of the Shikon Jewel can give the user unimaginable power.

Won the 47th Shogakukan Manga Award in the Shounen category.

From Anime Waves:

Meet Shizuki Maku - to say she looks "above average" would be a slight overstatement, but it's especially bad compared to her older twin brothers, the high-school heartthrobs Retsu and Tetsu. She always wondered whether or not she really belonged in her family, but things take a shocking twist when her brothers plant the suggestion that they may not be related after all.

Now she's supposed to pick one of them to be her boyfriend, all the while defending herself from all the other girls at school who want to keep her "brothers" for themselves! Life isn't easy when you're the ugly duckling!

Sonnan Ja Nee Yo received the Shogakukan Manga Award for shoujo manga in 2006.

For the first 14 years of his life, Yukio Tanaka has been one heck of a boring guy. He has no hobbies, weak taste in music, and only a small vestige of a personality. He yearns for an exciting life, but his shy, and somewhat neurotic personality makes him his own worst enemy. Little does he know that his life will be forever changed when he meets Ryusuke Minami, a wild and unpredictable 16-year old fresh from America, who happens to be in a rock-and-roll band named after his Frankenstein-like patched dog--Beck.

Note: Won the 26th Kodansha Manga Award for Best Shounen in 2002 (shared with Sakigake!! Cromartie Koukou).

Tohru Honda, an orphaned high-school girl, is taken in by the wealthy Shigure Sohma when he realizes she has nowhere else to go. However, the Sohma family shares a secret, and it isn't long before Tohru discovers that there's a reason why her classmates, Yuki and Kyo Sohma, never let girls get near them, and never talk about their lives before they lived with Shigure. And before she knows it, Tohru has become so tangled up in the lives of each member of the Sohma family that she couldn't leave even if she wanted to.

As she learns more and more about the truth of the Sohma family and the nature of their secrets, she desperately searches for a way that she can save them. But what can one girl do, especially when it seems that she may have been part of someone's plan all along . . .

Fruits Basket received the 2001 Kodansha Manga Award in the shoujo manga category and the "Best Manga" award at the 2007 American Anime Awards.

From Easy Going Scans:

Piano prodigy Arima Kosei dominated the competition and all child musicians knew his name. But after his mother, who was also his instructor, passed away, he had a mental breakdown while performing at a recital that resulted in him no longer being able to hear the sound of his piano even though his hearing was perfectly fine. Even two years later, Kosei hasn’t touched the piano and views the world in monotone, and without any flair or color. He was content at living out his life with his good friends Tsubaki and Watari until, one day, a girl changed everything. Miyazono Kaori is a pretty, free spirited violinist whose playing style reflects her personality. Kaori helps Kosei return to the music world and show that it should be free and mold breaking unlike the structured and rigid style Kosei was used to.

Won the Kodansha Manga Award for Shounen in 2013.

Welcome to Cromartie High—a melting pot of underachievers and overzealous bullies, where the fist rules, and the student body has the combined I.Q. of a rusty nail. After a whole lot of bad judgment and a little bad luck, Takashi Kamiyama is now attending this academy of dunces. Here, his only homework will be defending himself against the foul-mouthed robots, semi-intelligent apes, and masked villains that roam the halls of Cromartie High School!

Won the 26th Kodansha Manga Award for Best Shounen in 2002 (shared with Beck).

Note: The chapters are incorrectly numbered starting from Volume 14 (the volume begins with chapter 267 even though the last chapter of Volume 13 is 269).

One day a tanuki named Monoko stumbles across a baby abandoned by its mother. Having no family of her own, she raises the baby to the best of her ability even though they originate from different species. Hardships and enemies face the tanuki but that doesn't stop Monoko protecting the baby at all costs. Many trials await this baby as it grows and communicates with the animal world.

Won the Kodansha Manga Award for Children's Manga in 2013.

Smart, successful and good-looking Iwaya Sumire works for a big newspaper. However, her boss asks her to leave for being too "perfect" a woman. Feeling angry and dejected Iwaya returns home depressed, and most of all lonely. However, when she finds an unconscious young man lying in a box out the front of her home, she takes him in since he looks like a dog she used to own called Momo. She dubs him Momo and decides to "keep him as a pet." It's the start of an unexpected life together as they overcome obstacles and become quite attached to one another. But can love like this exist?

This manga won the 27th Kodansha Manga Award for shoujo in 2003 (shared with Hachimitsu to Clover).