斯瓦尔巴和扬马延（挪威语：Svalbard og Jan Mayen，ISO 3166-1 二位字母代码：SJ，ISO 3166-1 三位字母代码：SJM，ISO 3166-1 三位数字代码：744）是国际标准化组织定义的一片地区，由享有特殊司法权的挪威领土斯瓦尔巴群岛和扬马延岛组成。尽管这两个地方被国际标准组织被视为一体，但两者在行政上没有关联。斯瓦尔巴和扬马延拥有国家顶级域名.sj。联合国统计局也采用了这个代码来指代这两个地方，但是使用的全称与国际标准组织有所不同，为斯瓦尔巴和扬马延岛（英语：Svalbard and Jan Mayen Islands）。

Svalbard and Jan Mayen (Norwegian:Svalbard og Jan Mayen, ISO 3166-1 alpha-2: SJ, ISO 3166-1 alpha-3: SJM, ISO 3166-1 numeric: 744) is a statistical designation defined by ISO 3166-1 of two parts of Norway under separate jurisdictions—Svalbard and Jan Mayen. While the two are combined for the purposes of the International Organization for Standardization (ISO) category, they are not administratively related. This has further resulted in the country code top-level domain .sj being issued for Svalbard and Jan Mayen, and ISO 3166-2:SJ. The United Nations Statistics Division also uses this code, but has named it Svalbard and Jan Mayen Islands.