je ne le connais pas

I don't know him/it

→ je
phrase Uncommon #17,913
I don't know him/it Used with connaître to say that you are not familiar with a masculine person or thing. The pronoun can change: je ne les connais pas means “I don't know them.” The tense can also change, as in je ne le connaissais pas, “I didn't know him/it.”
FR: Je ne le connais pas, mais j'ai entendu parler de lui.
EN: I don't know him, but I've heard of him.

Je ne le connais pas personnellement.

I don't know him personally.

Mais je ne le connais pas.

But I don't know him.

— Divorce à l'italienne (1961)

Je ne le connais pas.

I don't know him.

— Le Cercle des poètes disparus (1989)

Je ne le connais pas si bien que ça.

I don't know him that well.

— Harry Potter et le Prince de sang-mêlé (2009)

Bien qu'il soit mon voisin, je ne le connais pas très bien.

Although he is my neighbor, I don't know him very well.

Je ne le connais pas!

I don't know him!

— Bacurau (2019)

Tom est mon voisin, mais je ne le connais pas très bien.

Tom is my neighbor, but I don’t know him very well.

J'ai entendu parler de lui, mais je ne le connais pas personnellement.

I've heard of him, but I don't know him personally.

Je ne le connais pas vraiment, mais c'était un des garçons de Szilard à Chicago.

I don’t really know him, but he was one of Szilard’s boys in Chicago.

— Oppenheimer (2023)

Je ne le connais pas du tout.

I don't know him at all.

On s'est juste rencontré, je ne le connais pas tant que ça.

We just met; I don't know him that well.

— The Machinist (2004)

Non, je ne le connais pas.

No, I don't know him.

— Nuremberg (2025)

Je ne le connais pas vraiment.

I don't really know him.

— Le Cercle des poètes disparus (1989)