The UK-based group slammed the US president's "transparently hateful" executive order
banning entry to citizens of several Muslim-majority countries.
"Throughout 2017, millions across the world experienced the bitter fruits of a rising politics of demonisation," said the report.
It accused leaders of wealthy countries of approaching the refugee crisis "with a blend of evasion and outright callousness".
"Most European leaders have been unwilling to grapple with the big challenge of regulating migration safely and legally, and have decided that practically nothing is off limits in their efforts to keep refugees away from the continent's shores," it added.
Amnesty Secretary-General Salil Shetty singled out Trump for criticism, saying the travel ban "set the scene for a year in which leaders took the politics of hate to its most dangerous conclusion".
He also condemned his decision to keep the US camp at Guantanamo Bay
on Cuba open, and his ambivalent attitude to waterboarding and other harsh interrogation
"You can imagine what this means for governments across the world who are extensively using torture," he said.
He noted that US attitudes had an impact across the world.
Tirana Hassan, director of crisis response at Amnesty International, said: "When it comes to conflict, crisis and mass atrocities we have seen zero moral or legal leadership coming from the international community."
Last month, rights watchdog Freedom House also criticised Trump for declining human rights worldwide, saying that the US leader's "admiration" for "some of the world's most loathsome strongmen
and dictators" contributed to emboldening authoritarian regimes.
Amnesty's report also touched on Myanmar's military crackdown
on Rohingya insurgents, saying the exodus of nearly 700,000 Rohingya Muslims into neighbouring Bangladesh was the "ultimate consequence of a society encouraged to hate, scapegoat and fear minorities".
"This episode will stand in history as yet another testament to the world's catastrophic failure to address conditions that provide fertile ground for mass atrocity crimes," said the report.