National Milkshake Day 2026

National Milkshake Day is an informal U.S. food observance marked on September 12. In 2026 it falls on Saturday, September 12. Many major national-day calendars list that same date as National Chocolate Milkshake Day. It is not a federal holiday, and no single official founder is clearly documented.

If you came here from a chocolate-shake recipe or a deal roundup, you are still in the right place: same calendar date, different naming habits across day trackers. Treat restaurant specials as year-by-year promotions. Confirm what is live that morning rather than relying on last year’s lists.

When is National Milkshake Day in 2026?

Saturday, September 12, 2026. The date is fixed each year (not floating). Browse everything sharing the slot on the September 12 hub. For the full month, use September national days. For what’s live today, use the Today page.

Milkshake Day vs Chocolate Milkshake Day

They are not unrelated holidays on different dates. Many major calendars list September 12 as National Chocolate Milkshake Day. This page covers milkshakes broadly on that same date and treats chocolate as the flavor most searchers lead with — without pretending the calendars invented two separate official holidays.

A short, defendable milkshake timeline

Separate the drink’s history from the calendar day’s origin. The first has documented fountain culture; the second is thin and should stay honest.

1885. “Milkshake” appears in print as an eggnog-style drink. Early references sometimes included alcohol. That detail belongs in history, not in celebration framing on this page.

Early 1900s. Non-alcoholic syrup versions — chocolate, strawberry, vanilla — become soda-fountain staples. The drink shifts toward what most people mean by “milkshake” today.

1910s–1920s. Electric drink mixers make frothy shakes practical at scale. Once shops could whip ice cream and milk quickly, the modern thick shake became everyday counter food.

1922 (often cited). A Walgreens / Ivar “Pop” Coulson story credits adding ice cream to a malted milk drink and helping popularize the modern malted shake. Treat it as commonly told fountain history, not a lab-dated invention patent.

The observance itself. The founder of National Milkshake Day as a calendar event is not clearly documented. Day trackers treat it as a modern promotional / informal food day.

Related dessert dates on this site include National Ice Cream Day, National Ice Cream Sundae Day, and National Coffee Ice Cream Day.

How to celebrate National Milkshake Day

1. Order a thick shake at a diner or ice cream shop. Ask whether they have a September 12 special — confirm that morning; do not invent last year’s lists.
2. Make one at home: ice cream + milk + syrup; blend until spoon-thick. Start with less milk than you think you need.
3. Try a malt by adding malted milk powder to the same base.
4. Taste-test chocolate vs vanilla vs strawberry with the same ice cream brand if you can. Chocolate fits the Sep 12 naming; the comparison teaches preference faster than a ranking list.
5. Share the Sep 12 date with anyone planning food content that week — and note the Chocolate Milkshake Day naming if they write for search.

Classic homemade milkshake

• 2–3 scoops ice cream (slightly softened blends more evenly)
• About 1/2–3/4 cup milk (adjust for thickness)
• 1–2 tbsp syrup or sauce (chocolate fits the Sep 12 angle)
• Blend; optional whipped cream
• Malt variation: add 1–2 tbsp malted milk powder

Milkshake vs malt vs frappe

• Milkshake: milk + ice cream + flavor
• Malt: milkshake + malted milk powder
• Frappe: in Boston-area usage, often means a milkshake (regional term)

Facts

• Electric drink mixers and blenders made frothy fountain shakes practical in the 1910s and 1920s
• A commonly reported record claim puts the largest milkshake at about 6,000 gallons in 2000
• The word milkshake appears in U.S. print by 1885, then as an eggnog-style drink rather than ice cream and milk
• Walgreens soda-fountain accounts often credit Ivar Pop Coulson in 1922 with adding ice cream to a malted milk drink
• Many major calendars list September 12 as National Chocolate Milkshake Day; this page covers milkshakes broadly on that same date

Upcoming dates

• Saturday, September 12, 2026
• Sunday, September 12, 2027
• Tuesday, September 12, 2028
• Wednesday, September 12, 2029
• Thursday, September 12, 2030