James & Kathryn (my brother and me - we're in our late 20s)
William (Willy) & Elizabeth (Liz) (went to elementary school with them)
Ashleigh & Amelia (Amie) (they were in my girl scout troop)
Megan & Melissa (went to high school with them)
Mary & Joan (former students of mine - in middle school now)
Presley & Dakota (both boys) (former students of mine - in 3rd grade)
Kirk & Scott (went to school with my husband)
...that's all I can think of at the moment.
I know several sets of twins in the area I live. I think it may be something in the water here ;)
G/G: June Penelope and Iris Wilhelmina (7 months)
B/G: Luca and Nova (I'd guess they are about 4)
G/G: Matilda Cheyenne and Vivian Eileen (17 years old)
B/G: Otis and Heidi (They are probably 8 or 9)
B/G: James and Christine (They are 13)
I know friends through friends who have 2 sets of fraternal twins. 2 year old boys, Nathan and Ryan and 6 month old girls, Lauren and Katie.
My 2nd cousins are Ian & Tina
At work I knew of Twin girls called Rio & Savanah
Tegan & Tia (referred to as TNT)
In school i knew fraternal twingirls named Farideh & Sohailah
Cora & Sylvia (<6 months)
John "Jack" & Charlotte (mid 20s)
Hunter & Austin (mid 20s, b/b)
Branden & Brynn (schoolage)
Abigail "Abby" & Erin (schoolage)
Greg & Zach (20s)
Holly & Haley (20s)--I only knew Holly, but when you ask her what her sister's name is she says it and then goes, "Yeah, yeah. I know" as though she's sick of people pointing out the matchiness.
Lisa & Erica (late teens)
Sebastian & Gregory (early teens)
Louise "Lou" & John "Jack" (20s)
Romina & Gabriela (teens)
Kylie & Jamie (20s, g/g)
Tiffany & Kimberly (early 20s)
Maya & Victor (20s)
Oh, I just remembered a few more!
I went to school with an Amanda Marie and Tiffany Kay.
I remember my mother having twins Chelsi and Kelsi in class some time ago.
A boy I had in class this past year had twin sisters who were born during the school year. There was Ethan, Jack, Lillian, Simon (in my class), Amelia, Charles, and the twins Hannah and Ivy.