Pol Col Kowit Rattanachot, the district police chief, identified the dead man as Sulaiman Hadama, 29, and his wife as Pattama Yuso.
He said the attack occurred about 7.18am near Chamuka village in tambon Paku as the couple, who had married only six months ago, were riding on a motorcycle to a rubber plantation.
They were followed on another motorcycle by two men, one of whom opened fire at them with a handgun. Sulaiman was seriously wounded and died later at Yala Hospital. His wife was hit by a bullet in the right arm.
Police were investigating.