I definitely have! I'll list the Tamagotchi I've named after someone. Sometimes I have several Tamagotchi named after one person.
Renee and Kym- My dance teachers
Aki and Maita- Aki Maita
Polo- My friend's bird named Polo: Short for Polousious and Long for Po.
Tommy- My friend's Tamagotchi
Jamie- Jamie from the Mythbusters
Hick!- A dance examiner I had once
Kat- Kat (Mimitchi). Who else?
Angie- Kat's first Tamagotchi Connection character.
Maude- Another dance examiner
Dom and Nic- A boy at school
Lucy- A flight attendant
Haigh- One of my teachers
Shean- Another one of my teachers
Thain- A student teacher who came to my school once
Elana- Elana, one of the members of TSS