🇬🇫French Guiana (officially: Guiana) is filed in ISO 3166-1 under alpha-2 code GF, alpha-3 code GUF and numeric code 254. Its international dialing code is +594 and its country-code top-level domain is .gf. The capital is Cayenne. Region: Americas.
Currency: EUR (Euro).
The two-letter code appears in domains, locales (like en-GF), shipping and licence plates; the three-letter code in passports, finance and sport; the numeric code where Latin script is unavailable.