Andrew Yerensky was a Manticoran citizen and an officer of the Royal Manticoran Navy.

In 1901 PD, he held the rank of Commodore and was a member of the Weapons Development Board. He contacted Captain Honor Harrington because the Board wanted to hear Harrington's thoughts about the grav lance and its use in the First Battle of Basilisk. Harrington agreed to meet with them, only to severely rebuff them. (HH1)