Loss of chromosome 9p21 is observed in one-thirds of clear cell renal cell carcinoma (ccRCC) and associated with poorer patient survival. Unexpectedly, 9p21 loss-of-heterozygosity (LOH) does not lead to decreased expression of the 9p21 tumor suppressor genes, CDKN2A and CDKN2B, suggesting alternative mechanisms of 9p-mediated tumorigenesis. Concordantly, CRISPR-mediated 9p21 deletion promotes growth of immortalized human embryonic kidney epithelial cells independently of the CDKN2A/B pathway inactivation. The 9p21 locus has a highly accessible chromatin structure, suggesting that 9p21 loss might contribute to kidney cancer progression by dysregulating genes distal to the 9p21 locus. We identified several 9p21 regulatory hubs by assessing which of the 9p21-interacting genes are dysregulated in 9p21-deleted kidney cells and ccRCCs. By focusing on the analysis of the HOXB13 locus, we found that 9p21 loss relieves the HOXB13 locus, decreasing HOXB13 methylation and promoting its expression. Upregulation of HOXB13 facilitates cell growth and is associated with poorer survival of ccRCC patients. Implications: The results of our study propose a novel tumor suppressive mechanism based on coordinated expression of physically associated genes, providing a better understanding of the role of chromosomal deletions in cancer.