This year's march takes place on Sunday, 8 March.
Back in 2016, the world came together to protest the election of the 45th President of the United States, Donald Trump.
All over the world, millions of people took to the streets to stand in solidarity with women in America as they lambasted their first-in-command.
Spanning from South America to Europe to Asia, the protest became one of the largest ones in history.
Today, the Women's March has evolved from not-so-humble beginnings into an international feminist movement that brings thousands of people together to fight the good fight for social change and gender equality.
When is it?
This year's Irish marches will be taking place on March 8.
As this year’s women’s day falls on Sunday, some #IWD events will begin earlier in the week, including An International Women’s Day panel discussion at the Epic Museum.
Led by historian Dr Angela Byrne, the talk will focus on transnational Irish women and their campaigns for gender equality, with Dr Leanne McCormack, Dr Ebun Joseph, and Dr Ann Marie O’Brien.
Also on view this week is 'Masterpieces', a play in Smock Alley about the #MeToo movement from which €1 of every ticket goes to the Dublin Rape Crisis Centre.
As well as these two, there is a constant stream of International Women’s Day events, a mix of fundraisers, campaigning, celebratory, and just fun.
Where does it start?
Everything kicks off at 2pm from The Spire.
The theme of this year’s International Women’s Day – #EachforEqual – centres around “an equal world is an enabled world” and the idea that individually, we’re all responsible for our own thoughts and actions - all day, every day.
We can actively choose to challenge stereotypes, fight bias, broaden perceptions, improve situations and celebrate women’s achievements; collectively, each of us can help create a gender-equal world.
In the words of the International Women's Day website:
"Equality is not a women's issue, it's a business issue. Gender equality is essential for economies and communities to thrive.
"A gender-equal world can be healthier, wealthier and more harmonious - so what's not great about that?
"The race is on for the gender-equal boardroom, a gender-equal government, gender-equal media coverage, gender-equal workplaces, gender-equal sports coverage, more gender equality in health and wealth ... so let's make it happen. Let's be #EachforEqual."
Who can attend?
Anyone who wishes to. The march, while being women-led, is open to people of all ages, abilities, genders, sexualities and ethnicities. It is entirely free to attend.
The aim is to join in diversity to show presence in numbers around the world too great to ignore.
I can't go – is there anything else I can do?
Yes, fight the good fight and/or donate. If you cannot make the march in person, please consider donating to help The National Women's Council of Ireland here.
The Women's March also seeks funds for outreach, rallies, signs and posters as well as the setting up, taking down and cleaning up of the aftermath.
Where can I find out more information?
For more information, check out the event page here.