A 'Triple-Double' is recorded when a player records 10 or more in three of the following categories: points, assists, rebounds, steals, and blocked shots. Prior to the 1973-74 season, the NBA did not record steals and blocked shots.

An amazing stat involving NBA Triple Doubles is that in 1961-62, Oscar Robertson, while playing for the Cincinnati Royals averaged a triple-double over the entire season. He averaged 30.8 points, 12.5 rebounds, and 11.4 assists. Robertson is the only player to ever accomplish this. During that season, he also set the mark for most triple-doubles in one season with 41 (played in 79 games). Those are two records that will probably never be broken.

Wilt Chamberlain recorded the only NBA Double-Triple-Double; 22 points, 25 rebounds, and 21 assists. Also in 1968, Chamberlain had a streak of 9 consective games in which he recorded a triple-double.

NBA All-Time Triple-Doubles - Regular Season
Rk.	Player	Team(s)	Total	# of Yrs
1	Oscar Robertson	Cincinnati Royals (1960/01 - 1969/70) Milwaukee Bucks (1970/71 - 1973/74)	181	14
2	Magic Johnson	Los Angeles Lakers (1979/80 - 1990/91, 1995/96)	138	13
3	* Jason Kidd	Dallas Mavericks (1994/95 - 1996/97, 2007/08) Phoenix Suns (1996/97 - 2000/01) New Jersey Nets (2001/02 - 2007/08) Dallas Mavericks (2007/08 - present)	105	17
4	Wilt Chamberlain	Philadelphia Warriors (1959/60 - 1961/62) San Francisco Warriors (1962/63 - 1964/65) Philadelphia 76ers (1964/65 - 1967/68) Los Angeles Lakers (1968/69 - 1972/73)	78	14
5	Larry Bird	Boston Celtics (1979/80 - 1991/92)	59	13
6	Lafayette Lever	Portland Trailblazers (1982/83 - 1983/94) Denver Nuggets (1984/85 - 1989/90) Dallas Mavericks (1990/91 - 1993/94)	43	11
7	John Havlicek	Boston Celtics (1962/63 - 1977/78)	30	16
8	* Grant Hill	Detroit Pistons (1994/95 - 1999/00) Orlando Magic (2000/01 - 2006/07 Phoenix Suns (2007/08 - present)	29	16
9	* LeBron James	Cleveland Cavaliers (2003/04 - 2009/10) Miami Heat (2010/11 - )	29	8
10	Michael Jordan	Chicago Bulls (1984/85 - 1992/93) Chicago Bulls (1994/95 - 1997/98) Washington Wizards (2001/02 - 2002/03)	28	15
11	Clyde Drexler	Portland Trailblazers (1983/84 - 1994/95) Houston Rockets (1994/95 - 1997/98)	25	15

NBA All-Time Triple-Doubles - Active Players
Player	Team(s)	Total	# of Yrs
* Jason Kidd	Dallas Mavericks (1994/95 - 1996/97, 2007/08) Phoenix Suns (1996/97 - 2000/01) New Jersey Nets (2001/02 - 2007/08) Dallas Mavericks (2007/08 - present)	105	17
* Grant Hill	Detroit Pistons (1994/95 - 1999/00) Orlando Magic (2000/01 - 2006/07 Phoenix Suns (2007/08 - present)	29	16
* LeBron James	Cleveland Cavaliers (2003/04 - 2009/10) Miami Heat (2010/11 - )	29	8
* Kobe Bryant	Los Angeles Lakers (1996/97 - present)	17	15
* Kevin Garnett	Minnesota Timberwolves (1995/96 - 2006/07) Boston Celtics (2007/08 - present)	16	16
* Lamar Odom	Los Angeles Clippers (1999/00 - 2002/03) Miami Heat (2003/04) Los Angeles Lakers (2004/05 - present)	12	12
* Chris Paul	New Orleans Hornets (2005/06 - present)	11	6
* Baron Davis	Charlotte Hornets (1999/00 - 2001/02) New Orleans Hornets (2002/03 - 2004/05) Golden State Warriors (2004/05 - 2006/07) Los Angeles Clippers (2008/09 - present)	10	12

NBA All-Time Triple-Double Leaders - Playoffs
Rk.	Player	Team(s)	Total	# of Yrs
1	Magic Johnson	Los Angeles Lakers (1979/80 - 1990/91, 1995/96)	30	13
2	*Jason Kidd	Dallas Mavericks (1994/95 - 1996/97, 2007/08) Phoenix Suns (1996/97 - 2000/01) New Jersey Nets (2001/02 - 2007/08) Dallas Mavericks (2007/08 - present)	11	16
3	Larry Bird	Boston Celtics (1979/80 - 1991/92)	10	13
4	Wilt Chamberlain	Philadelphia Warriors (1959/60 - 1961/62) San Francisco Warriors (1962/63 - 1964/65) Philadelphia 76ers (1964/65 - 1967/68) Los Angeles Lakers (1968/69 - 1972/73)	9	14
5	Oscar Robertson	Cincinnati Royals (1960/01 - 1969/70) Milwaukee Bucks (1970/71 - 1973/74)	8	14
T6	* LeBron James	Cleveland Cavaliers (2003/04 - 2009/10) Miami Heat (2010/11 - present)	6	8
T6	* Rajon Rondo	Boston Celtics (2006/07 - present)	6	5
7	John Havlicek	Boston Celtics (1962/63 - 1977/78)	5	16
T8	Tim Duncan	San Antonio Spurs (1997-98 - present)	4	13
T8	Charles Barkley	Philadelphia 76ers (1984/85 - 1991/92) Phoenix Suns (1992/93 - 1995/96) Houston Rockets (1996/97 - 1999/00)	4	16
T8	Elgin Baylor	Minneapolis Lakers (1958/59 - 1959/60) Los Angeles Lakers (1960/61 - 1971/72)	4	14
T8	Walt Frazier	New York Knicks (1967/68 - 1976/77) Cleveland Cavaliers (1977/78 - 1979/80)	4	13
T8	Scottie Pippen	Chicago Bulls (1987/88 - 1997/98, 2003/04) Houston Rockets (1998/99) Portland Trailblazers (1999/00 - 2002/03)	4	17

* Denotes active player
Updated: Nov. 12th 2010

Sources:
http://en.wikipedia.org/wiki/Triple_double
http://www.databasebasketball.com/
http://home.swbell.net/hartley4/tripdoub.htm

Jason Kidd's 1st Career Triple-Double