To think that this is not pronounced

[NeedsAsockamnesty]

Castor, as in the boy's name.

My friend thinks it's pronounced like CasTOR

I think it's pronounced like CastER and that Caster,castor and Kaster are homophones.

I'm happy to be told I'm wrong and am being unreasonable but it's boggling my brain.

I'm having a baby in a couple of days had girls names sorted because that's what I was expecting turns out its a boy and Castor is on a very small short list

[NeedACleverNN]

Castor= caster to me

[QuackDuckQuack]

If it's going to bother you then pick a more mainstream name as your friend won't be the last to pronounce it differently.

[springwaters]

Would be castor to me.OR.

Risks being called caster oil as a nickname though. Or something stools/ diahorrea based.

[springwaters]

Castor oil.

[omri]

I'd pronounce like caster sugar

[Missgraeme]

Expect the Castor Troy gags.
We have a Cyrus and he gets Cyrus the Virus.
Live both names tho!!

[DameDiazepamTheDramaQueen]

OR to me.

[SilverDragonfly1]

CastER. Castor oil is CastOR though (depending on region!) so how it's pronounced generally might depend on where you live. However, Castor Troy in Face/Off is def CastER.

[SilverDragonfly1]

Sorry, here Castor oil is CaRstor!

[FrazzleRock]

Its a NAME!?
Ok....

Then I'd probably automatically read it as CAS-ter to rhyme with CAS-per.

[NeedsAsockamnesty]

I know 4 Castors who all pronounce it castER, who or what is Caster Troy?

[YouTheCat]

What other names are on your list?

[NeedsAsockamnesty]

Yes frazzle it's a name www.mythencyclopedia.com/Ca-Cr/Castor-and-Pollux.html

[KoalaDownUnder]

OP, these threads are generally pointless as people are not very good at explaining in writing how they pronounce things.

Be prepared to be very confused.

[NeedsAsockamnesty]

theCat

So far

Jasper
Castor
Fergus

[NeedsAsockamnesty]

I'm already confused, I found my socks in my handbag earlier!

[Buzzardbird]

I read it as Caster but now I look at it, I would pronounce it as Castor Oil. I have never heard of a human with this name before though.

[KoalaDownUnder]

I love Jasper.

Castor makes me picture a castor on the bottom of a wheely chair. Or caster sugar.

[YouTheCat]

I know a Jasper or two.

Fergus is nicer, I think. It depends on how it goes with surnames/middle names I suppose.

I don't know any Castors but I'd pronounce it with the 'or' rather than 'er'.

[Nobodysproblem]

Think it's one of the names on orphan black (Netflix thing!) and it's pronounced cas-tor (ie not like the sugar..) on there!

[KoalaDownUnder]

Oh, so it's with a short 'a' sound then? As in 'cat'?

Honestly, I think you'll get constant mispronunciations, if that bothers you. 'Castor' looks like 'CAH-stuh' to me.

[TeenAndTween]

I would pronounce it like your friend.
I think your other two choices are better as only one way to say them.

[NeedACleverNN]

I prefer Jasper over Castor but it is your choice

[TeenAndTween]

Castor and Pollux are names from mythology/astronomy. I wouldn't use them. It is a bit like saying that Methuselah is a name. It is a name of course, but not one standardly used in Britain. (Waits to be contradicted by someone who knows 3 of them).