The most NHL career goals of course belongs to Wayne Gretzky, and will most likely not ever be broken.

Only Gretzky and Gordie Howe have scored more than 800 NHL goals. 6 players total have scored more than 700 career NHL goals, 17 players have scored 600 or more career goals, and 49 players have joined the 500 career goal club.

NHL All-Time Goals Leaders
Rank	Player	Team(s)	Goals	GMs
1	Wayne Gretzky	Edmonton Oilers (1979/80 - 1987/88) Los Angeles Kings (1988/89 - 1995/96) St. Louis Blues (1995/96) New York Rangers (1996/97 - 1998/99)	894	1487
2	Gordie Howe	Detroit Red Wings (1946/47 - 1970/71) Hartford Whalers (1979/80)	801	1767
3	Brett Hull	Calgary Flames (1986/87 - 1987/88) St. Louis Blues (1987/88 - 1997/98) Dallas Stars (1998/99 - 2000/01) Detroit Red Wings (2001/02 - 2003/04) Phoenix Coyotes (2005/06)	741	1269
4	Marcel Dionne	Detroit Red Wings (1971/72 - 1974/75) Los Angeles Kings (1975/76 - 1986/87) New York Rangers (1986/87 - 1988/89)	731	1348
5	Phil Esposito	Chicago Blackhawks (1963/64 - 1966/67) Boston Bruins (1967/68 - 1975/76) New York Rangers (1975/76 - 1980/81)	717	1282
6	Mike Gartner	Washington Capitals (1979/80 - 1988/89) Minnesota North Stars (1988/89 - 1989/90) New York Rangers (1989/90 - 1993/94) Toronto Maple Leafs (1993/94 - 1995/96) Phoenix Coyotes (1996/97 - 1997/98)	708	1432
7	Mark Messier	Edmonton Oilers (1979/80 - 1990/91) New York Rangers (1991/92 - 1996/97) Vancouver Canucks (1997/98 - 1999/00) New York Rangers (2000/01 - 2003/04)	694	1756
8	Steve Yzerman	Detroit Red Wings (1983/94 - 2005/06)	692	1514
9	Mario Lemieux	Pittsburgh Penguins (1984/85 - 1996/97, 2000/01 - 2003/04, 2005/06)	690	915
10	Luc Robitaille	Los Angeles Kings (1986/87 - 1993/94) Pittsburgh Penguins (1994/95) New York Rangers (1995/96 - 1996/97) Los Angeles Kings (1997/98 - 2000/01) Detroit Red Wings (2001/02 - 2002/03) Los Angeles Kings (2003/04, 2005/06)	668	1431
11	* Jaromir Jagr	Pittsburgh Penguins (1990/91 - 2000/01) Washington Capitals (2001/02 - 2003/04) New York Rangers (2003/04, 2005/06 - 2007/08) Philadelphia Flyers (2012)	658	1306
12	Brendan Shanahan	New Jersey Devils (1987/88 - 1990/91) St. Louis Blues (1991/92 - 1994/95) Hartford Whalers (1995/96 - 1996/97) Detroit Red Wings (1996/97 - 2003/04, 2005/06) New York Rangers (2006/07 - 2007-08) New Jersey Devils (2008-09)	656	1524
12	* Teemu Selanne	Winnipeg Jets (1992/93 - 1995/96) Mighty Ducks of Anaheim (1995/96 - 2000/01) San Jose Sharks (2000/01 - 2002/03) Colorado Avalanche (2003/04) Anaheim Ducks (2005/06 - present)	649	1298
13	Dave Andreychuk	Buffalo Sabres (1982/83 - 1992/93) Toronto Maple Leafs (1992/93 - 1995/96) New Jersey Devils (1995/96 - 1998/99) Boston Bruins (1999/00) Colorado Avalanche (1999/00) Buffalo Sabres (2000/01) Tampa Bay Lightning (2001/02 - 2003/04, 2005/06)	640	1639
15	Joe Sakic	Quebec Nordiques (1988/89 - 1994/95) Colorado Avalanche (1995/96 - 2003/04, 2005/06 - 2008/09)	625	1378
16	Bobby Hull	Chicago Blackhawks (1957/58 - 1971/72) Winnipeg Jets (1979/80) Hartford Whalers (1979/80)	610	1063
17	Dino Ciccarelli	Minnesota North Stars (1980/81 - 1988/89) Washington Capitals (1988/89 - 1991/92) Detroit Red Wings (1992/93 - 1995/96) Tampa Bay Lightning (1996/97 - 1997/98) Florida Panthers (1997/98 - 1998/99)	608	1232
18	Jari Kurri	Edmonton Oilers (1980/81 - 1989/90) Los Angeles Kings (1991/92 - 1995/96) New York Rangers (1995/96) Mighty Ducks of Anaheim (1996/97) Colorado Avalanche (1997/98)	601	1251
19	Mark Recchi	Pittsburgh Penguins (1988/89 - 1991/92) Philadelphia Flyers (1991/92 - 1994/95) Montreal Canadiens (1994/95 - 1998/99) Philadelphia Flyers (1998/99 - 2003/04) Pittsburgh Penguins (2005/06) Carolina Hurricanes (2005/06) Pittsburgh Penguins (2006/07 - 2007/08) Atlanta Thrashers (2007/08) Tampa Bay Lightning (2008/09) Boston Bruins (2008/09 - 2010/11)	577	1652
20	Mike Bossy	New York Islanders (1977/78 - 1986/87)	573	752
T21	Joe Nieuwendyk	Calgary Flames (1986/87 - 1994/95) Dallas Stars (1995/96 - 2001/02) New Jersey Devils (2001/02 - 2002/03) Toronto Maple Leafs (2003/04) Florida Panthers (2005/06 - 2006/07)	564	1257
T21	Mats Sundin	Quebec Nordiques (1990/91 - 1993/94) Toronto Maple Leafs (1994/95 - 2003/04, 2005/06 - 2007/08) Vancouver Canucks (2008-09)	564	1346
23	Mike Modano	Minnesota North Stars (1989/90 - 1992/93) Dallas Stars (1993/94 - 2003/04, 2005/06 - 2009/10) Detroit Red Wings (2010/11)	561	1499
24	Guy Lafleur	Montreal Canadiens (1971/72 - 1984/85) New York Rangers (1988/89) Quebec Nordiques (1989/90 - 1990/91)	560	1127
25	John Bucyk	Detroit Red Wings (1955/56 - 1956/57) Boston Bruins (1957/58 - 1977/78)	556	1540
26	Ron Francis	Hartford Whalers (1981/82 - 1990/91) Pittsburgh Penguins (1990/91 - 1997/98) Carolina Hurricanes (1998/99 - 2003/04) Toronto Maple Leafs (2003/04)	549	1731
27	Michel Goulet	Quebec Nordiques (1979/80 - 1989/90) Chicago Blackhawks (1989/90 - 1993/94)	548	1089
28	Maurice Richard	Montreal Canadiens (1942/43 - 1959/60)	544	978
29	Stan Mikita	Chicago Blackhawks (1958/59 - 1979/80)	541	1394
30	Keith Tkachuk	Winnipeg Jets (1991/92 - 1995/96) Phoenix Coyotes (1996/97 - 2000/01) St. Louis Blues (2000/01 - 2003/04, 2005/06 - 2006/07) Atlanta Thrashers (2006/07) St. Louis Blues (2007/08 - 2009/10)	538	1201
31	Frank Mahovlich	Toronto Maple Leafs (1956/57 - 1967/68) Detroit Red Wings (1967/68 - 1970/71) Montreal Canadiens (1970/71 - 1973/74)	533	1181
32	Bryan Trottier	New York Islanders (1975/76 - 1989/90) Pittsburgh Penguins (1990/91 - 1991/92, 1993/94)	524	1279
33	Pat Verbeek	New Jersey Devils (1982/83 - 1988/89) Hartford Whalers (1989/90 - 1994/95) New York Rangers (1994/95 - 1995/96) Dallas Stars (1996/97 - 1998/99) Detroit Red Wings (1999/00 - 2000/01) Dallas Stars (2001/02)	522	1424
34	Dale Hawerchuk	Winnipeg Jets (1981/82 - 1989/90) Buffalo Sabres (1990/91 - 1994/95) St. Louis Blues (1995/96) Philadelphia Flyers (1995/96 - 1996/97)	518	1188
35	Pierre Turgeon	Buffalo Sabres (1987/88 - 1991/92) New York Islanders (1991/92 - 1994/95) Montreal Canadiens (1994/95 - 1996/97) St. Louis Blues (1996/97 - 2000/01) Dallas Stars (2001/02 - 2003/04) Colorado Avalanche (2005/06 - 2006/07)	515	1294
36	Jeremy Roenick	Chicago Blackhawks (1988/89 - 1995/96) Phoenix Coyotes (1996/97 - 2000/01) Philadelphia Flyers (2001/02 - 2003/04) Los Angeles Kings (2005/06) Phoenix Coyotes (2006/07) San Jose Sharks (2007/08 - 2008/09t)	513	1363
37	Gilbert Perreault	Buffalo Sabres (1970/71 - 1986/87)	512	1191
38	Jean Beliveau	Montreal Canadiens (1950/51 - 1970/71)	507	1125
39	Peter Bondra	Washington Capitals (1990/91 - 2003/04) Ottawa Senators (2003/04) Atlanta Thrashers (2005/06) Chicago Blackhawks (2006/07)	503	1081
40	Joe Mullen	St. Louis Blues (1981/82 - 1985/86) Calgary Flames (1985/86 - 1989/90) Pittsburgh Penguins (1990/91 - 1994/95) Boston Bruins (1995/96) Pittsburgh Penguins (1996/97)	502	1062
T41	* Jarome Iginla	Calgary Flames (1996/97 - present	500	1149
	Lanny McDonald	Toronto Maple Leafs (1973/74 - 1979/80) Colorado Rockies (1979/80 - 1981/82) Calgary Flames (1981/82 - 1988/89)	500	1111

* Active Player
Updated: Jan. 8th 2012

Sources:
Hockey-Reference.com
Wikipedia.org
Statshockey.net
2007 NHL Official Guide and Record book