Former president Obama met with Bush at his home in Houston on Tuesday afternoon, three days before the 41st presidents death.
Mr Kenyatta said the world has lost an astute statesman and public servant, business icon and a family man who will be emulated by many across the globe.
[He] was a man of the highest character and the best dad a son or daughter could ask for.
"His exemplary spirit of service and commitment to country would mark each of his roles - including in Congress, as ambassador to the United Nations, as head of the Central Intelligence Agency, and in the White House", Trudeau said of the former president in a written statement.
Putin praised George H.W. Bush for pursuing constructive dialogue between the two nuclear powers and credited him with doing much for strengthening U.S.
The Trumps added, "Along with his full life of service to country, we will remember former President Bush for his devotion to family - especially the love of his life, Barbara". It was George Bush.
"As president, he set the stage for the decades of prosperity that have followed".
After two terms in the Reagan Administration Bush ran for President himself defeating Michael Dukakis. The vote went ahead and the U.S. lost narrowly, paving the way to the entry of People's Republic of China to the China after being kept away for 22 years.
After retiring from public life, Bush fulfilled a wartime pledge to one day jump out of a plane for fun and famously went skydiving on his 75th, 80th, 85th and 90th birthdays.
James A. Baker III, secretary of state in the Bush administration, stated that "The legacy of George H.W. Bush will be forever etched in the history of America and the world". But his son who bears his name, came in as the 43rd president after the era of Bill Clinton.
After graduation Bush embarked on a career in the oil industry of West Texas. Funeral arrangements will be announced in due course, McGrath said.
"I pay tribute to George Bush's contribution toward this historic achievement". However, he continued the policy of banning those living with HIV and AIDS from entering the United States.
The former president passed away at 10:10 p.m. local time (1610 GMT) on Friday.
During his 1988 presidential campaign, he wrote in his diary that Americans "didn't want same-sex marriage codified".