You can’t beat [name]Marina[/name] [name]Charlotte[/name] in my opinion. There is a cousin to the (English) Royals who is a [name]Marina[/name]-[name]Charlotte[/name] and I think it’s gorgeous.
I adore [name]Marina[/name] nn [name]Mina[/name]!
[name]Love[/name] it - I like [name]Skye[/name] as a middle name 
I love this name I think it’s gorgeous on a girl or a woman. I don’t think you need a nickname, but [name]Mari[/name] (first syllable rhymes with car) and [name]Mimi[/name] are nice.
[name_f]Marina[/name_f] is beautiful and underused. I like the marine connotation and think of a mermaid.
It’s also a royal name, a princess name ([name_m]Shakespeare[/name_m]'s [name_m]Pericles[/name_m]), and the name of two famous Russian ballerinas.
I especially love that it’s international and has a rich history of use.
[name_f]Marina[/name_f] [name_f]Faye[/name_f] ("[name_f]Fairy[/name_f] of the sea")
[name_f]Marina[/name_f] [name_f]Vivienne[/name_f]
[name_f]Marina[/name_f] [name_f]Juliet[/name_f]
[name_f]Marina[/name_f] [name_f]Charlotte[/name_f]
[name_f]Marina[/name_f] [name_u]Ruby[/name_u]
[name_f]Marina[/name_f] [name_f]Chloe[/name_f]
[name_f]Marina[/name_f] [name_f]Phoebe[/name_f]
NN: [name_f]Mare[/name_f] (like car), [name_f]Mari[/name_f], [name_f]Marnie[/name_f], [name_f]Mia[/name_f], [name_f]Mina[/name_f], [name_f]Mira[/name_f], [name_f]Mila[/name_f], [name_f]Mariska[/name_f], Rini, [name_f]Ree[/name_f].
Nina
My name is [name_f]Marina[/name_f] [name_f]Izabella[/name_f].
I go by, [name_f]Mari[/name_f]. [name_f]Rin[/name_f]. ReeRee. [name_f]Ree[/name_f]. And [name_f]Rina[/name_f].
I like [name_f]Marina[/name_f]! I’d use [name_f]Mari[/name_f] or [name_f]Mia[/name_f] as the nn.
[name_f]Marina[/name_f] [name_f]Adele[/name_f]
[name_f]Marina[/name_f] [name_f]Claire[/name_f]
[name_f]Marina[/name_f] [name_f]Elise[/name_f]
[name_f]Marina[/name_f] [name_f]Paige[/name_f]
[name_f]Marina[/name_f] [name_f]Kate[/name_f]
[name_f]Marina[/name_f] [name_f]Katherine[/name_f]
[name_f]Marina[/name_f] [name_f]Penelope[/name_f]
[name_f]Marina[/name_f] [name_f]Suzanne[/name_f]
[name_f]Marina[/name_f] [name_f]Willow[/name_f]
[name_f]Marina[/name_f] [name_u]Hadley[/name_u]
[name_f]Marina[/name_f] [name_f]Isabel[/name_f]
[name_f]Marina[/name_f] [name_f]Gabrielle[/name_f]
I [name_u]LOVE[/name_u] [name_f]Marina[/name_f]. It’s gorgeous.
I’d use [name_f]Mimi[/name_f] or [name_f]Nina[/name_f] as a nn but it doesn’t have to be shortened really as it just flows.
I actually know a woman called [name_f]Marina[/name_f] [name_f]Rose[/name_f]! Except that [name_f]Rose[/name_f] is actually her surname. I think the two names go really well together.