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The first name 

Lou is a female first name, but it has increasingly been given to boys for a number of years.

When two girls called Lou meet...

… it’s a special occasion. That’s because the name Lou is quite rare in the US. While it’s still a name in use, lately, only approximately 2 out of 100,000 girls have been named Lou. In the SmartGenius ranking, Lou is #4,029 on the list of most common girls names. If you polled the whole US population – children, adults and seniors – you’d find less than one in 10,000 to be named Lou.

You won't believe all there is 
to discover about the name

Lou -
evergreen, but special

For more than 140 years, parents decide to name their daughter Lou annualy. This means that there have been girls named Lou who witnessed the first Labor Day parade in the U.S. or followed Albert Einstein's career. The name has 'always been there', but never ranked in the top 100, and thus women named Lou have consistently been special. The name was particularly popular a long time ago in the 19th century. In one particular year, long before the first passenger flight and even before there was the first real radio, parents liked Lou even more than any other time: in 1880, it holds its present record of rank #112 in the list of the most popular girls' names.

In years where the graph has no value, the name Lou was given less than five times or even none at all in the entire USA.

How popular was Lou 2021 among young parents?

Lou has never been ranked higher than #112. In 2021, she rivaled the 1,600 names that preceded her on the list. In total, 54 girls named Lou were born in that year. For comparison: 30 years earlier, in 1991, when possibly the parents of the now very young Lou were born, there have been 6 newborns who received this name.

Lou has 3 letters 
and begins with an L

Well, you might say, you probably figured that out yourself! But what you might not know is: The letter L is a particularly popular initial letter for girls' names – 6.8% of all common girls’ names in the US begin with this letter. By the way, the most common first letters for girls’ names are A and S.

With only three letters, the name Lou is obviously very short. In fact, only 1.0% of all common first names in the US consist of exactly three letters. Just 0.2% of all first names are even shorter and only have two letters, while nearly 99% of all boys’ and girls’ names use more than three letters. On average, first names in the US (not counting hyphenated names) are 6.5 letters long. There are no significant differences between boys' and girls' names.

That means that with 6.8% of all girls' names that begin with an L, this first letter is much more common than the other letters on average. If you are now wondering which girls' name with L is the most common... the answer is Linda.

Other names with 
L, o and u

If you take all the letters in the name Lou – L, o and u – and put them together again, you can form another name, such as Olu.

With hands, flags and sounds 
How to say Lou

If your name is Lou and someone asks after your name, you can of course just tell them what it is. But sometimes that isn't so easy - what if it's too loud, and you don't understand them well? Or what if the other person is so far away that you can see them but not hear them? In these situations, you can communicate your name in so many other ways: you call spell it, sign it, or even use a flag to wave it...

This is how you spell the name Lou

So that everyone really understands you when you have to spell the name Lou, you can simply say:




This is how the name Lou is spelled in the NATO phonetic alphabet

The NATO alphabet often helps people spell words on the phone or radio when there are communication problems.

How do you write Lou in Braille?

Braille is made up of dots, which the blind and visually impaired can feel to read words.



You want to tell a deaf person that your name is Lou

Just use American Sign Language!

The name Lou is particularly colorful in the Semaphore flag signaling system!

These flags are used for maritime communication - each flag represents a letter.


Have you ever waved the name Lou

In the navy, sailors of two ships might wave flags to each other to send messages. A sailor holds two flags in specific positions to represent different letters.


Beeping like crazy...

In Morse code, letters and other characters are represented only by a series of short and long tones. For example, a short tone followed by a long tone stands for the letter A. Lou sounds like this: