travelguruette
Individual cards for each person. Even for married couples.

Glo*
I would simply put both of their first names. This should not be offensive to them, they know they are a couple. God bless****

carnivale4ever
I would put first and last name for each person.

jlcon
Misters John X and Smith C

JonV
You only put ONE person's name on each card. That goes for everyone. What's more (prepare to be shocked) husbands and wives aren't even supposed to be seated next to each other.

endorable
That's a funny question! Unless you expect one of them to sit in the other's lap, you'll need to provide two chairs, and two place cards!

rhrjruk
I notice that this is a gay couple. Were you planning on having them sit on each other's lap? Why else would they share a single place card? The purpose of place cards is to spread people out and sit them next to new people with whom you believe they will be comfortable. Each person gets his/her own place card and partners are never seated next to one another. So your two gentlemen will not be sitting next to one another. They may choose not even to mention their partner or they may blow kisses to one another across the room. If you do not want to offend anyone, then treat them exactly the same as the other guests. Or are the other guests seated on one another's laps, too?

INDIAN
ADDRESS THEM SEPARATELY

hazel a
You do it separately. Mr. John Smith X on one card and Mr. Jack Smith X on the other, and so on. Each person, even married couples get their own name plate.