Translation guide
The country Sweden is referred to as スウェーデン in Japanese. This is the standard and most common way to say Sweden.
Sweden
Referring to the nation of Sweden in general contexts.
The standard Japanese name for Sweden. Used in all contexts, from casual conversation to formal writing.
Sweden is a Nordic country.
Ateji (kanji used phonetically) for Sweden. Rarely used in modern Japanese; mostly found in historical or stylistic contexts. The reading is still スウェーデン.
I'm going to Sweden next month.
Sweden is a beautiful country.