Is Ash’s Pikachu a boy or a girl?

[brooker]

what is their gender? do you know it?

[ventustalks]

The gender differences in certain Pokémon species give us subtle hints. For instance, Pikachu species have a small gender difference such as the tail! Female Pikachus have a notch at the end of their tails, making them look somewhat heart-shaped, while male Pikachus have a straight tails without the notch.

Using this as our guide, Ash's Pikachu has a straight-edged tail, which points to it being a male. And if that doesn’t convince you, in several episodes, other characters refer to Pikachu using male pronouns.

[Anonymous]

Ash's Pikachu is officially a male. This detail has been subtly confirmed in various Pokémon media. For example, in the Pokémon anime, Pikachu's tail shape is a key indicator; male Pikachu have a straight tail end, while female Pikachu have a tail end that is shaped like the top of a heart. Ash's Pikachu has the straight tail end, indicating he is male. Plus, there have been instances in the anime where gender differences are pointed out, further solidifying Pikachu's gender as male. So, yeah, Ash's iconic companion throughout his Pokémon adventures is a boy!

[TheSpaceGnome]

Here is a list showing gender differences in pokemon species that have sexual dimorphism.
https://bulbapedia.bulbagarden.net/wiki/List_of_Pokémon_with_gender_differences

[BigDog1989]

Of course since it's all fake, it's not real

[TheSpaceGnome]

@BigDog1989 Thats obvious enough to not need pointing out (especially not twice).

[Sasahara]

Boy. You can tell a Pikachu’s gender by looking at its tail. Female Pikachus has heart shaped tails while male has straight line.

[Bilboes]

I'm pretty sure Pikachu is a male.. I mean look at this little dude, he was bamboozled by the sight of a hot chick.

[BigDog1989]

Decide, decide
Is this it, is it? Decide
And it's not your style, is it?
Decide, decide
Is this it, is it just fine?
Things are really fine?
You wanted it
Was it like you dreamed?
You got it and
Was it like it seemed?
Yeah, I wanna say nothing, nothing
Not a fucking thing
I just wanna say something, something
Something
Decide, decide
Is this it, is it? Decide
And it's not your style, is it?
Decide, decide
Is this it, is it just fine?
Things are just fine
Everything is fine
Everything's just fine
Everything is fine
Everything is
You wanted it
Was it like you dreamed?
You got it and
Was it like it seemed?
No, I wanna say nothing, nothing
Not a fucking thing
'Cause I just wanna take something, something
Something
No, was it worth it, worth it?
Just one fucking thing?
I could've said something, something
Something
Decide, decide
Is this it, is it? Decide
And it's not your style, is it?
Decide, decide
Is this it, is it just fine?
Everything's fine
Everything is fine
Everything's just fine
Everything is fine
Liar!

Pikachu is a rat, so, whatever you get from this song

[BigDog1989]

I see you chose MHO, quite quick. Care to explain why?

[PBandJ_Nerd]

Pikachu is a boy. Female pikachus have heart shaped tail tips.

[Anonymous]

Based on the Rule 34 stuff I've seen, a boy.

[clampfan101]

Male. Females have a heart-like end of their tail.

[Aiko_E_Lara]

It's male. Female Pikachus have heart shape tails.

[legalboxers]

ash is a dude I think

[JosyJosy]

Boy.

[Yannae]

One of the boys!

[DummyThiccFeraligatr]

He's a boy.