Barack Obama's victory tweet has become one of the most retweeted tweets ever in the 10-year history of Twitter.
President Obama's tweet after the United States Supreme Court legalized same-sex marriage is the second most retweeted tweet by a world leader.
Saudi Arabia's King Salman's tweet sent after his accession to the throne is the third most retweeted tweet by a world leader.
Indian Prime Minister Narendra Modi's election day tweet is the fourth most retweeted tweet by a world leader with more than 84,000 retweets.
Mexican President Enrique Peña Nieto's tweet about the capture of Mexican drug lord Joaquín Guzmán Loera was retweeted more than 80,000 times and is the fifth most retweeted tweet by a world leader.
Canadian Prime Minister Justin Trudeau's tweet including the hashtag for Bell Let's Talk Day to promote public discussions around mental health is the sixth most retweeted tweet, retweeted 76,000 times.
Pope Francis' tweet in Filipino stating that "The Philippines is proof of youth and vitality of the Church." is the seventh most retweeted tweet by a world leader with more than 73,000 retweets.
Pope Benedict's first tweet quickly became one of the most retweeted tweets with over 60,000 retweets but it has been deleted after his abdication.
The tweet from the White House showing an ageing Barack Obama and a youthful Michelle Obama is the ninth most retweeted tweet.
French President François Hollande's reaction to the Paris attacks in November 2015 has become the tenth most retweeted tweet by a world leader with 57,000 retweets.
Turkish Prime Minister Ahmet Davutoğlu's one word reaction after his election victory meaning "All praise belongs to God" is the eleventh most retweeted tweet by a world leader with 53,000 retweets.
The first tweet posted by Queen Elizabeth II herself on the account opening an exhibition at the Science Museum was retweeted 40,000 times.