I have 26 first cousins; 11 on my father’s side (he had 4 siblings), and 15 on my mother’s (she had 6). Don’t ask me about first cousins once removed (ie, their children), it’s upwards of 25, but I don’t keep in touch with all my cousins, and don’t know all of their kids.
Eight. Four on my father’s side, four on my mother’s.
Fourteen.
Three on Mom’s side, eleven on Dad’s.
My sister-in-law has 81 first cousins.
20 that I know of, and that’s on my Dad’s side alone.
Probably just as many on my mom’s.
Let’s see… probably five or six dozen.
Father’s side: 17 (was 20, but three are now dead)
Mother’s side: 6 (was 7, but one is now dead).
I know just about all. I have never met two (one dead now) on my father’s side, and one on my mother’s side.
15… and 10 of them are from the same Uncle… no multiple births…
You gotta wonder how he had the time for that
14 on mom’s side, and 7 on dad’s
Wow, for someone with Irish Catholic on one side and Italian Catholic on the other, my number is pitifully low: I have 7 first cousins. The oldest is 34, the youngest is 5. Two were adopted, including the one I had the hots for as a kid…if I’d only known then… 
I have 13 on my fathers side and 11 on my mothers side.
33, total I believe. 3 are deceased.
All these are from Pops Mercotan’s side. He was one of 12 kids. My mom was an only child.
Well, so far **jsgoddess ** is leading, with 108 first cousins - closely followed by **labtrash ** (90-100) and **Sassy ** (85).
At the other end, both **hajario ** and I have no first cousins.
I find it interesting that many Dopers seem to be unsure of just how many first cousins they have. That seems strange to me, but then I’ve grown up in a background of a very small family (both parents only children, and three of four grandparents also only children).
I have 20-ish; 2 on my dad’s side and around 18 or 19 on my mom’s (I have one uncle who has married and divorced so many times I’m not even sure which ones are related and which are steps anymore). Mom has 7 brothers and sisters and dad has one sister.
I hope you don’t mind my throwing in my father’s strange record. He had fifty first cousins on his father’s side only. I don’t know how many first cousins he had on his mother’s side. He was the youngest of seventeen children in a blended family.
I forgot to add that since my father had siblings that have been dead for over a hundred years, I’m not sure how many first cousins I have at all.
In fact, when I was growing up, some of Dad’s nephews seemed more like they should be the age of other kids’ grandparents.
I met one of my second cousins from that side about fifteen years ago. If he were still alive, he would be over a hundred.
Not so strange. One of my aunts lived in South Dakota and was the oldest in the family being about 6 years older than my father. So by the time I was 2 or three years old a couple of her children were already married and I never even knew them. Likewise another aunt lived in Sioux City (the other side of the moon in the early '30’s) and the same thing happened. It wouldn’t surprise me much if their own younger brothers and sisters didn’t know the older ones all that well.
Three, or one, or none.
Dad’s an only child, so none on that side.
Mom had an older brother and a younger brother. Older uncle married a woman with a son when Sis and I were small; we see that cousin every decade or so. Younger uncle and his wife adopted two small kids when Sis and I were in our late teens; we haven’t seen either of them in eons.
I have seven biological first cousins on my mother’s side. There were nine, but two of my cousins have died (one heart attack, one car accident). In addition, my aunt raised two stepsons from her second marriage. I don’t know how many cousins I have on my father’s side as I have zilch info on that family.
5 by blood and 3 by adoption or from an earlier marriage.
I have nine. Four on my mom’s side, five on my dad’s side (both my parents have two siblings).
Both my parents were raised Catholic too, but neither they nor their siblings were ever very strict about it.