titleTextAlign: String

Sets the text alignment of axisY title. This feature is useful whenever titleWrap is set to true, title length exceeds titleMaxWidth, and title is wrapped onto multiple lines.

var  chart =  new  CanvasJS.Chart("container", {
 .
 .
 axisY:{
	titleTextAlign: "center" // change to "left" / "right"
   },
 .
 . 
});
chart.render();