"A Man This Lonely" is a song written by Ronnie Dunn and Tommy Lee James, and recorded by American country music duo Brooks & Dunn. Dunn and James, who played guitar in Brooks & Dunn's backing band at the time, wrote the song while on tour in Canada. It was released in December 1996 as the fourth single from Brooks & Dunn's album Borderline. It reached number 1 on Billboard magazine's Hot Country Songs chart.