Short answer
What the Mack logo symbol means
Mack uses a bulldog because the Mack AC truck of World War I, with its stubby, blunt-nosed hood and a reputation for toughness, reminded British soldiers of the British Bulldog. The company put the bulldog on its AB chain-drive models in 1921 and made it the corporate symbol in 1922. In 1932 chief engineer Alfred Fellows Masury carved the first bulldog hood ornament and patented it.
Quick read
Mack logo at a glance
- Symbol
- A seated bulldog
- Origin
- WWI nickname of the Mack AC truck
- First used
- 1921, on AB chain-drive models
- Corporate symbol
- 1922, when the company became Mack Trucks, Inc.
- Hood ornament
- 1932, carved by chief engineer Alfred Fellows Masury
- Gold bulldog
- Marks a truck with a full Mack engine, transmission and axles
Interactive logo decoder
The Mack Bulldog Logo
The bulldog
A seated bulldog built from flat, angular facets with a collar around its neck. It is the modern, flat version of the bulldog that has stood on Mack hoods since the 1930s.
Highlighted on the logoThe MACK wordmark
The name is set in wide, heavy capital letters with squared-off, rounded corners. The stretched proportions give the word a solid, planted look that sits under the bulldog.
Highlighted on the logoRegistered mark
A small circled R sits at the end of the wordmark. It marks the name as a registered trademark and is part of the logo file as supplied, not a decorative element.
Highlighted on the logo
The Mack Bulldog truck
The Mack AC went on sale in 1916 with a tapered hood and a short, blunt nose. More than 40,000 were built before production ended in 1939, and over 6,000 went to the British and American militaries during World War I. The truck's pugnacious look and durability reminded British soldiers of their national mascot, the British Bulldog.
A legend adds that soldiers in trouble would ask for “Mack Bulldogs” to be sent. Treat that as a legend. The nickname itself is documented, but the wartime quote is the kind of story that grows with retelling.
How the Mack bulldog went from nickname to logo
The company followed the soldiers' lead. The bulldog first appeared in 1921 on the AB chain-drive models and became the official corporate logo in 1922, the year the business became Mack Trucks, Inc. By then it was based in Allentown, Pennsylvania, which had been the center of main manufacturing since 1905.
The company began as a Brooklyn carriage and wagon business that brothers John M. “Jack” Mack and Augustus “Gus” Mack bought in 1893, and it sold its first trucks under the name Manhattan before taking the Mack name in 1910.
The 1932 Mack bulldog hood ornament
The three-dimensional bulldog came a decade later. While recuperating from an operation, chief engineer Alfred Fellows Masury carved the first bulldog hood ornament in 1932, applied for a U.S. patent and received it. The chrome bulldog has been on Mack hoods ever since.
The ornament still carries information. A gold-plated bulldog means the truck was built with Mack's full drivetrain, meaning the Mack engine, transmission and axles. The flat, angular bulldog in today's logo is a later redraw. No designer is credited for it or for the Mack wordmarks, and the company's materials do not explain the faceted look beyond the design itself.
The Mack bulldog logo today
The archive shows a chrome bulldog on top of a black oval in 1992, when Renault had taken full ownership of Mack. The current logo from 2014 replaces that chrome rendering with a flat seated bulldog above wide, heavy capitals reading MACK. Mack has belonged to Volvo since the turn of the 2000s, and the bulldog stayed.
Logo archive
Mack logo versions through the years
1985 Heavy italic script 
1992 Chrome oval with the bulldog - 2014 Flat bulldog and wide capitals
Frequently asked questions
Mack logo symbol questions answered
Why does Mack use a bulldog?
British soldiers nicknamed the blunt-nosed Mack AC the Bulldog in World War I. Mack began using the bulldog on its AB models in 1921 and made it the corporate symbol in 1922.
Who designed the Mack bulldog hood ornament?
Chief engineer Alfred Fellows Masury carved the first one in 1932 while recovering from an operation, and he received a U.S. patent for it. No designer is credited for the modern flat logo.
What does the gold Mack bulldog mean?
It means the truck has a full Mack drivetrain, with the engine, transmission and axles all made by Mack.
Is the story of soldiers asking for Mack Bulldogs true?
It is presented as a legend. The nickname is documented, but the exact wartime request is not verified.
Who owns Mack Trucks?
Mack is part of Volvo, which acquired it around 2000 together with Renault Véhicules Industriels. Mack's headquarters moved to Greensboro, North Carolina, in 2009.
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More logo meanings
References
Sources for the Mack logo story
Mack logo and history. Logo images are an educational reference archive.