Character Naming Traditions

Pierce has distinct countries and regions with their own naming traditions, and people within the same country or region generally follow the same naming traditions and styles.

Tortall
Tortall has decidedly English names and naming traditions. The children inherit the father's name, unless the child is a bastard and/or the last name of the father is unknown. In which case, the child might well be a bastard anyways. In either case, the child would take the mother's name. For the nobility, children are given a first name (usually a single word, though double names are not unheard of) and the placename suffix of their birth (in example, Faraday of Port Legann.)

Tusaine
See Tortall for examples.

Maren
See Tortall for examples.

Tyra
See Tortall for examples. Additionally, Tyra was a merchant state before its destruction, which means that they did not have a noble class, but rather everyone had a 'common' name.

Galla
In Galla, the names are somewhat eccentric (ie Sarra, Veralidaine, etc.) It's tradition is patriarchal as well; the child's surname is its father's name with the addition of 'sri.' In example, say I have character named Luanne, and her mother and father are known/usually married. Say the father's name was Murrak and the mother's name was Perine. My character's name would then be 'Luanne Murraksri." Likewise, if the child is a bastard/ the father is unknown/ an exception is made, the child takes the mother's name with the addition of 'sra.' Thus, should my character have born under the appropriate conditions, her name could have been 'Luanne Perinesra'.

Yamani Isles
The Yamani Islanders have names that sound Japanese in nature. In example, Chisakami, Shinkokami, Lianokami, Nariko, Hakuin, Yukimi noh Daiomoru, Eitaro no Nakuji, Haname noh Ajikuro. As a general rule of thumb, if it sounds vaguely Japanese, it should fly.

Scanra
Scanra is very obviously of Scandinavian influence. Maggur Rathhausak, for example.

Sarain
Sarain is roughly equivalent Mongolia.

Bazhir
The Bazhir are Arab.

Copper Isles
The Copper Isles are fairly analogous to India and Southeast Asia, though they are not a straight-up copy.

Roof of the World/ Doi
The people at the Roof of the World were modeled after people of the Himalayas, the Tibetans and Nepalese and etc.

Carthak
Think Africa, and you've hit right on it.