Rosco Is A Boys Name Of Norse Origin. It Is A Variation Of Roscoe, Which Means "deer Wood." Whether Youre Inspired By Nature Or The Vikings, A Name Like Rosco Is An Excellent Choice For Your Son. As They Go Through Life, Baby Rosco May Develop A Love For The Great Outdoors. Their Adventurous Nature Will Ensure Your Little Warrior Has Lots Of Fun Exploring Their Environment And Discovering Its Many Treasures.