A Mercury-crosser asteroid is an asteroid whose orbit crosses that of Mercury. The known numbered Mercury-crossers and outer-grazers (marked †) are:
- 1566 Icarus
- 2101 Adonis †
- 2212 Hephaistos †
- 2340 Hathor †
- 3200 Phaethon
- 3838 Epona †
- 5143 Heracles †
- (5660) 1974 MA †
- 5786 Talos
- (16960) 1998 QS52 †
- (24443) 2000 OG †
- (33342) 1998 WT24 †
- 37655 Illapa †
- (40267) 1999 GJ4
- (66063) 1998 RO1
- (66146) 1998 TU3 †
- (66253) 1999 GT3
- (66391) 1999 KW4
- (66400) 1999 LT7 †
- (68348) 2001 LO7 †
- (85953) 1999 FK21
- (85989) 1999 JD6 †
- (86667) 2000 FO10 †
- (87309) 2000 QP †
- (87684) 2000 SY2
- (88213) 2001 AF2 †
- (88254) 2001 FM129 †
- (89958) 2002 LY45
