SJM

SJM is an abbreviation of:
 * Swadeshi Jagaran Manch
 * Svalbard and Jan Mayen, archipelago of Norway, ISO 3166-1 alpha-3 code
 * Servi Jesu et Mariae
 * Samyukta Janamorcha Nepal
 * Super Junior-M

in business:
 * The NYSE symbol for The J.M. Smucker Co.
 * Sociedade de Jogos de Macau, casino subsidiary of Sociedade de Turismo e Diversões de Macau