Sunday's protests centring Battery Park in New York are part of a programme called National Day of Jewish Action for Refugees.
Protest rallies were also held in California, Massachusetts, Illinois, Colorado, Pennsylvania and New Jersey.
New York City Mayor Bill de Blasio urged the demonstrators to continue speaking out against Trump’s efforts to ban the entry of refugees and travellers from seven Muslim countries.
“Executive orders don’t hold us back,” he said, referring to Trump's ban order, which has been stayed by the court. “An attack on refugees is an attack on all of us,” he added.
Manhattan Borough President Gale Brewer, New York City Public Advocate Letitia James, and New York City Comptroller Scott Stringer, among others, spoke at the rally.
They called for stronger Jew-Muslim unity.