A logo doesn't have to be a square. There are several examples of famous non-square logos.
Can logos be square?
Square logos are a safe choice — which can be great for financial, legal, andreal estatecompanies — but they can also appear more rigid and conventional than other logos. This blog post goes into the benefits of square logos, but we want to present you with some alternatives first.
What does a square mean in a logo?
Square shapes: Strength, efficiency, professionalism, practicality. Vertical lines: Aggression, masculinity, strength, progress. Horizontal lines: Calm, tranquility, community, speed.