In London, protesters rallied in Trafalgar Square
on Sunday morning, in defiance of Britain's lockdown rules which prohibit large gatherings.
Some participants marched to the US embassy in the capital's Nine Elms area.
Crowds gathered in Berlin in front of the US embassy on Saturday and Sunday. Participants wore face masks and carried signs declaring "Black lives matter" and "Justice can't wait".
Chants of "no justice, no peace" were heard In the streets of Copenhagen on Sunday, as protesters marched over Floyd's death. Some rallied outside the Danish capital's US embassy.
In Milan, crowds held a flashmob near the city's US consulate on Thursday.
Protests over Floyd's killing were held in multiple locations across New Zealand on Monday. Thousands held demonstrations and vigils in places including Auckland, Wellington, and Christchurch.
Several protests were also held in Canada during the weekend, as crowds rallied against alleged police brutality.
On Saturday, demonstrators in Toronto chanted slogans associated with the Back Lives Matter movement.
And on Sunday, thousands gathered in Vancouver in a show of solidarity with US protesters.
Residents in Krakow, Poland gathered at the city's US consulate on Sunday evening. Some lit candles in a tribute to Floyd.
A large group gathered in Perth's Central Business District (CBD) on Monday to hold a Black Lives Matter protest.
As well as expressing solidarity with US protesters, those gathered were also demonstrating against the treatment of minority and indigenous groups in Australia.
At least three more rallies have been planned in multiple Australian cities.