Htydjtk

henpecked [hen-pekt]
adjective

1. browbeaten, bullied, or intimidated by one's wife, girlfriend, etc.:

a henpecked husband who never dared to contradict his wife.

What is the wife of a henpecked husband called? (in regards to her browbeating/bullying, her husband)

It might not be henpecker since henpecked seems to have the etymology of "pecked by the hen"

Sample sentence:

That woman is a henpecker.

You might go with a word that was well-understood in the Shakespearean era:

shrew

2: an ill-tempered scolding woman
_{definition from m-w.com}

Thus the henpecked husband could say "I didn't realize it at the time but I soon discovered that I'd married a real shrew."

The verb henpeck means:

[Merriam-Webster]

: to subject (one's spouse or partner) to persistent nagging and domination

So, if you're looking for a common word (and a noun), you would simply say, "That woman is a nag":

[Merriam-Webster]

noun

: one who nags habitually

Yes, henpecker is a word, feel free to use it.

One who henpecks or nags.

From Wiktionary.

And from Definition Of,

A nagging wife

Recognised word from Glosbe and WordHippo.

See this Yahoo Answers thread for further information.

You can have your pick, I like harridan. But look at the synonym list, it's hysterical.

har·ri·dan
[ˈherəd(ə)n]
NOUN
a strict, bossy, or belligerent old woman. "a bullying old harridan"

synonyms: shrew · virago · harpy · termagant · vixen · nag · hag · crone · dragon · ogress fishwife · hellcat · she-devil · fury · gorgon · martinet · tartar · spitfire · old bag · old bat

Grey mare is an older phrase used to refer to a woman who has the final say in a marriage. Here's an excerpt from the Dictionary of Phrase and Fable (1898) explaining the term:

The Grey Mare is the better horse. The woman is paramount. It is said that a man wished to buy a horse, but his wife took a fancy to a grey mare, and so pertinaciously insisted that the grey mare was the better horse, that the man was obliged to yield the point.

The phrase sometimes appears outside of the saying, as in this translation of Martial's epigram 560 (book X, epigram LXIX), which describes a wife with excessive control over her husband as a grey mare:

You have the husband's latch-key, he has none;

You are the grey mare, Polla, when all's done.

This passage in Latin literally describes putting a husband in the place of a wife (translation in italics):

Custodes das, Polla, viro, non accipis ipsa. Polla, you give your husband guards that you don't receive yourself

Hoc est uxorem ducere, Polla, virum. This is making your husband into a wife, Polla.

An unambiguous colloquial phrase for this is She Who Must Be Obeyed. It even has a Wikipedia page.

The meaning of the phrase is pretty clear just from the literal words put together, but here's a source:

informal, depreciative

A strong-willed or domineering woman, especially a wife or female partner.

_{-- Oxford Dictionaries}

It may also be shortened to simply SWMBO.