Mom and Dad
I guess that’s just plain boring. What do you all call your grandparents?
I called my Mom’s parents “granddad” and “nana”. I called my Dad’s dad, “grandpa” and call my last remaining grandparent “grandma”.
As for my extended family, I call them all by the proper terms in Hindi. This is the best way for me since, for example, in your immediate family alone there is a different word for:
Father’s older brother or sister
Father’s younger brother or sister
Mother’s older brother
Mother’s younger brother
Both sets of grandparents
Etc. So it’s very easy to differentiate. When I say Massi, I’m only talking about my mother’s sisters (this goes for older & younger). When I say Thaya, I’m talking about one of my father’s older brothers.
I call my mother “Mum,” when talking about her to others. To her face, it’s mostly Mum or Mom. She calls herself “Mom,” or “Mama,” and my father gets to be “Dad”, or his nickname, when talking to us. I call him “Dad,” too. Both sets of grandparents are “Oma and Opa Lastname”.
Maybe I’m odd, but referring to themselves as “Mama and Dad,” more than their given names around us makes me a little uncomfortable since it makes me feel like they’re more lizardling’s parents than their own people, if that makes sense.
I called my parents Mommy and Daddy until sometime in elementary school, and it’s been Mom and Dad ever since then. It would feel very strange to go back to Mommy and Daddy (childish, and so I would only say it as a joke), but even worse to start using Mother/Father, which sound stilted and overly formal to me.
They were “Mommy” and “Daddy” when I was younger, but became “Mom” and “Dad” somewhere along the line. By coincidence, today is Dad’s 71st birthday.
I call them Mom and Dad. I call her Mommy or Mother when I want to annoy her. When I call her Mother, she calls me Daughter in response. Hee. I call my father Daddy sometimes, but he likes that. I wouldn’t do it in public though. I refer to them as the parental units or the little parents (“Must call my little parents today”).
Sometimes I call Mom “Master,” such as when she wants me to get something for her, either because she can’t reach it or it’s in a different part of the store or something. “Yes, Master, a brain for my master,” I say, like Igor. We both think it’s hysterical. That, along with the toothpick fights, is one surefire test whether any love interest of mine will fit into the family.
I called them Mama and Daddy until I was 10 years old. When my brother entered elementary school he started calling them Mom and Dad. That was what all the cool kids at school called their parents then, and, since my brother got about 90% of the “cool” that should have been split six ways, he shamed the two sisters that are between us (and me) into calling them Mom and Dad. It has been thus since 1960.
If it matters the chronology is as follows:
1950–me
1952–sister
1953–sister
1954–brother
1960–brother
1963–sister
After first grade I called my mother ‘mom,’ (before that it was ‘mommy’) and I always remember calling my father ‘dad.’
I clled both my grand mothers ‘grandma’ (I usually pronounced it ‘gramma’). My maternal grand father was ‘Papa.’ In fact, I can remember him saying, 'Don’t call me grandpa, it makes me feel old. Call me papa." My paternal grand father was ‘grandpa’ (He was ised to feeling old, as I have cousins who are more than a decade older than I).
:: Apologises for misspellingd & grammar mis-takes,
My mother is Mom. My father is That Guy I Don’t Talk To. I call my stepdad by name, and The Wife of That Guy I Don’t Talk To…never mind, this isn’t The Pit.
My husband still calls his parents Mommy and Daddy (he’s 32). I call them by name, and have received no objections.
Grandma and Grandpa are pronounced Gramma and Grampa, although I call my grandfather Papa.
I’m 40 and I call them Mum and Dad.
When I was very little I called them Mommy and Daddy; I think I changed over to Mom and Dad about the time I started going to school. (Oddly, although I write it “mom,” I usually pronounce it “mum.” Sometimes I jocularly call her “momma” (“Hey, momma!”)
(Amusing but tangentially related anecdote: Dad always got Mom a gift for Mother’s Day, and would give it to her and go “Happy Muddah’s Day!” She’d respond “I ain’t your muddah!” It was just one of their little running gags…)
I call my mom Mom unless I want something, then I call her Mommy. Sometimes I call my mom Mommy just because I miss her and want to be a kid again (can we say “homecooked meals”?).
I usually call my dad Pop to his face because it annoys him but I can still get away with being cheeky without getting in trouble. But if I want something, then I give him a hug and call him Daddy. Behind his back I call him That Fat Angry Man. My mom and brother agree and both of them think that it accurately depicts him. 
Mum & Dad, although I sometimes called Dad ‘Pater’ just to be a prat.
I call my parents Mama (pronounced mumma) and Dada.
Weirdly, when I was little I called my dad by his first name, but after I went to school I started calling him Dada.
My brother and I always called them Susan and David, except for that phase I went through at about 11 when I watched The Waltons compulsively, when they were Mama and Daddy, much to their chagrin. Although I will refer to them as “My mother” or “My father” when discussing them with people. One of my friends feels it’s incrediblty rude. Granted I can’t understand why adults get honorifics ever. Even when I get my PhD, I will only become Doctor when dealing with very, VERY rude people.
I have always called my mother Ma. I’ve recently discovered that many people find this kind of crass, but <shrug> it doesn’t seem to bother Ma. I also noticed that both my brothers call her Ma, but my sister calls her Mom. Occasionally, when I am sick or particularly blue, I will call my mother and say. “Hi. I don’t feel good and I want my Mommy.”
I don’t speak to my father, but when I did, I called him Carl.
My husband refers to his mother as “my mom” but he usually calls her Mama. His father is Dad, or sometimes Tony (which is NOT his name, it’s just something he and his brother do to irritate him for fun.) I call my in-laws by their first names usually, but sometimes call my father-in-law Dad.
My daughter (age 15) calls me Mom or Mommy and her father is Dad or Daddy. And the neighborhood kids call me Mamacarthy, which is sort of a play on my actual name.
My brothers and I refer to them as Mum and Dad, though we have a lot of nicknames - Mum mostly gets called ‘Mumzor’ or ‘Mumpsk’. Dad gets a lot of ‘B-Dogs’. They get greeted with a ‘sup Mum/Pops’.
“Mom” and “Dad”. Or more commonly “Hey”. Other people’s parents were pretty uniformly “Hey”, unless they specified how they wished to be addressed.
My mom, oddly, refered to my dad as “Daddy”, though none of us chilluns called him that.
Grandparents were all Grandma/Grandpa + first name. Same with Aunt/Uncle types. Grandma Ruth, Aunt Pat, Uncle Kerry, etc. Cousins all got first names.
That reminds me – my dad used to occasionally refer to my mom as Mommy when speaking to us (“You broke the parking tag?! That lets Mommy park her car!!”), long after my brother and I stopped calling her that.
Well, when talking about my mom, she’s usually my mom or my mommy. When I talk to her, she’s always mommy and always will be (I’m 25 BTW). If she ever actually starts posting and not just lurking, I’ll either refer to her as my mom or my mommy or Manileib. I think both my sisters still refer to her as mommy but since we’re rarely all in the same room - I can’t be sure.
My father has had so many names throughout the years. He started out as daddy. Then, he became the sperm-donor (in my rude teen years). Now, he’s my father. Despite the fact that I can’t stand him, I still can’t bring myself to call him by his first name. He has had other names but they are very rude and I don’t use them anymore.
My step-dad goes by his first name. My first step-mother goes by her first name. My second step-mother goes by: my father’s third wife (I don’t like her or their marriage for many reasons but this isn’t the pit so I wont go in to it).
My maternal grandfather is grandpa (pronounced grampa). My paternal grandmother is grandma (pronounded grama). As far as I’m concerned, they are my only grandparents (my paternal grandfather died before I was born, I’ve never met my maternal grandmother and don’t ever want to).
My fiancee’s parents are memere (pronounced mi -as in mit- may:mime) and pop because that’s what their grandkids call them and it just feels natural. His grandparents are grandpa and grandma.
When I have kids, I hope they call me mommy but that will be their decision.