Here are the top two Tweets that generated the most Retweets for the year, plus honorable mentions for a few other Tweets that caught attention around the world.

1. Barack Obama @BarackObama
“Four more years”

6 Nov 12
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810,000+ retweets 300,000+ favorites

Credit: Michelle Obama, on Twitter
President Obama comments on his reelection

Before he took the stage to affirm his election victory, President Obama marked his win via Twitter. Within hours, this Tweet simultaneously became the most retweeted of 2012 — and the most retweeted ever, sent by people in more than 200 countries around the world.

2. Justin Bieber @justinbieber
“RIP Avalanna. i love you”

26 Sep 12
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220,000+ retweets 100,000+ favorites

Credit: Avalanna Routh, on Twitter
Justin Bieber says goodbye to a fan

Suffering from a rare form of brain cancer, six-year-old Avalanna Routh was big Justin Bieber fan, and the pop star had grown close to her during her illness. When she passed away in September. Bieber paid tribute to her in a Tweet, and many, many Twitter Beliebers responded.

3.TJ Lang @TJLang70
“Bleep it NFL.. Fine me and use the money to pay the regular refs.”

24 Sep 12
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98,000+ retweets 28,000+ favorites

Credit: Seattle Seahawks, on Twitter
Packer TJ Lang voices his frustration

In September the Seattle Seahawks went head-to-head with the Green Bay Packers. The now-infamous final play was called by a “replacement ref” due to a labor standoff with the referees’ union. That call generated 1+ million Tweets as players and fans flocked to Twitter to grouse about the decision. TJ’s Tweet became the most retweeted of the night — and of the NFL season overall.

4.Team GB @TeamGB
“29 gold, 17 silver, 19 bronze – We finished 3rd in medal table after most successful Olympics for 104 years #OurGreatestTeam RT your support”

12 Aug 12
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67,000+ retweets 5,000+ favorites

Credit: Team GB, on Twitter
Team GB congratulates its athletes

For the first time since 1948, the Summer Olympics returned to London. British athletes performed extremely well, with a “home team” advantage resulting in more medals than expected. Fans followed their every move, joining in at the close of the Games to show their support for #OurGreatestTeam.

5.山寺宏一 @yamachanoha
“…I would like to announce here: I, Koichi Yamadera, have married Ms. Rie Tanaka … I am really happy to have met such a great partner and have our lives come together. We made up our minds to respect each other, help each other and build a home full of smiles…”

公式ブログが無いのでこちらで報告させて頂きます。私、山寺宏一は昨日6月17日に声優の田中理恵さん と入籍致しました。人生を共に歩んで行く素晴らしいパートナーと巡り会えた事に感謝します。互いを信頼し、支え合い、笑顔あふれる家庭を築いて行こうと思 います。暖かく見守って頂けたら幸いです。

17 Jun 12
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68,000 retweets 6,000 favorites

Credit: Spring’12 -cherry blossom- by Yoozigen, on Flickr
Anime fans salute a wedding

When actor Kouichi Yamadera announced in a Tweet that he registered for marriage with actress Rie Tanaka, it became the most retweeted message from Japan this year. Why? Both are prominent Japanese voice actors, famous for many of their anime roles.
- Twitter.com