When Is National Mayonnaise Day?

The internet history of Mayonnaise Day

  National Mayonnaise Day is on the 5th of May

  6 tweets

  First detected on the 5th of May 2015

mayonnaise beef bread bun

Is It Mayonnaise Day Today?

It's Mayonnaise day on the 5th of May.

The most recent detection of references to Mayonnaise Day was 3 years, 11 months ago.

There were many celebrations relating to national holdiays written about on social media that our algorithms picked up on the 5th of May. In total we detected 115 total unique days being shared such as Concert Day which had 14,693 people talking about it, or Teacher Appreciation Day having 1,806 tweets.


How Is The Date For Mayonnaise Day Calculated?

The day shown for 'National Mayonnaise Day' is based off how much chitter-chatter and buzz there was on May 5, 2015 across social media making references to 'Mayonnaise Day'. Our algorithms examine all of the references to National Days across social media and updates whatnationaldayisit.com hourly, with our homepage displaying the current national day, including others such as: Teacher, Love Pizza or Buckfast Day. This crowdsourcing of data method to assess the National Mayonnaise Day date is used as opposed to being connected with any Government sacntioned lists :D Hurrah for democracy by concensus!


I'd Like To Promote National Mayonnaise Day

We've put together the following resources full of nifty tips on how to increase the reach of Mayonnaise Day. The resources include: graphs, badges, and resources on what steps to take to boost Mayonnaise Day's visibility.

Can I Register Mayonnaise Day?

We don't have an international authority or governmental remit to declare any officially celebrated "national Mayonnaise day". We only aim to programatically reflect what 'National Day' it is based of what The Internet Says It Is. We believe this is much more fun as it reflects the nature of how the most amusing / interesting national days are often created organically and grow based off popular social trends and sharing, as such we don't add new days to our database unless they are organically observed on social media.



Is it National Mayonnaise Day Everywhere?

Yes? No.. Sort of | Maybe ¯\_(ツ)_/¯

What's really intersting is how whilst some National Days like National Daughters Day are seemingly celebrated internationally irrespective of geography, some very popular days (That often become the No. 1 National Day on our homepage) are in fact locally very specific and are offical holidays celebrated on a Country's national calendar. Take National Rambutan Day for instance, Rambutan is a popular Souteast Asian fruit and not seen so much in the UK, Europe or the USA. Some regionally specific trends subsequently become immensely popular internationally and worldwide, partly fuelled by widely shared 'National Days', National Pabebe Wave Day being one such example.


We're now tracking the sentiment around every mention of Mayonnaise day to show how people feel about Mayonnaise. See if people like Mayonnaise here.
We're detecting how Mayonnaise affects other things more widely than just being a celebrated day. See how Mayonnaise affects company share prices.


Hang On, It Was National Mayonnaise Day Already This Year..!?

Yes, this is strangely enough entirely possible. The date shown for National Mayonnaise Day can change, if for instance several hundred people tweeted about Mayonnaise Day in early April, then in May a few thousand people tweeted about Mayonnaise day, then the date shown for National Mayonnaise Day, could come up twice :D

We have also detected mentions of Mayonnaise day on;



Get The Badge

National Mayonnaise Day

It's Mayonnaise Day
On May 5th


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National Mayonnaise Day, on the 5th of May

Other Days

National Pizza Day
National Avocado Day
National Taco Day
National Pretzel Day
National Hot-Dog Day
National Cheeseburger Day
National Burger Day
National Waffle Day
National Sandwich Day
National Grilled-Cheese Day
National French-Fry Day
National Pie Day
National Pasta Day
National Junk-Food Day
National Hamburger Day
National Cheese Day
National Peanut-Butter Day
National Spaghetti Day
National Cheese-Pizza Day
National Hotdog Day


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For people who wish to promote National Mayonnaise Day, we've put together the following resources.
See also: How does Mayonnaise affect the share price of Apple, Facebook, Microsoft?
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