Wilt Chamberlain has grabbed the most career rebounds, with 23,924 rebounds.

Interpreted as:

top 20 in rebounds by a player for NBA career

NAME	REB	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	AST	STL	BLK	TOV	PF	+/-
Wilt Chamberlain	23,924	1,045	45.8	30.1	22.9	4.4			12.1	22.5	54.0				5.8	11.4	51.1	54.7				47,859	31,419	4,643				2,075
Bill Russell	21,620	963	42.3	15.1	22.5	4.3			5.9	13.4	44.0				3.3	5.8	56.1	47.1				40,726	14,522	4,100				2,592
Kareem Abdul-Jabbar	17,440	1,560	36.8	24.6	11.2	3.6	0.9	2.6	10.2	18.1	55.9	0.0	0.0	5.6	4.3	6.0	72.1	59.2	2.4	7.6	2.7	57,446	38,387	5,660	1,160	3,189	2,527	4,657
Elvin Hayes	16,279	1,303	38.4	21.0	12.5	1.8	1.0	2.0	8.4	18.6	45.2	0.0	0.1	14.7	4.1	6.1	67.0	49.1	3.1	7.8	2.4	50,000	27,313	2,398	864	1,771	1,358	4,193
Moses Malone	16,212	1,329	33.9	20.6	12.2	1.4	0.8	1.3	7.1	14.5	49.1	0.0	0.1	10.0	6.4	8.3	76.9	56.9	5.1	7.1	3.1	45,071	27,409	1,796	1,089	1,733	3,804	3,076
Tim Duncan	15,091	1,392	34.0	19.0	10.8	3.0	0.7	2.2	7.4	14.6	50.6	0.0	0.1	17.9	4.2	6.1	69.6	55.1	2.8	8.1	2.4	47,368	26,496	4,225	1,025	3,020	3,381	3,304	+8910
Karl Malone	14,968	1,476	37.2	25.0	10.1	3.6	1.4	0.8	9.2	17.8	51.6	0.1	0.2	27.4	6.6	8.9	74.2	57.7	2.4	7.7	3.1	54,852	36,928	5,248	2,085	1,145	4,524	4,578	+3010
Robert Parish	14,715	1,611	28.4	14.5	9.1	1.4	0.8	1.5	6.0	11.1	53.7	0.0	0.0	0.0	2.5	3.5	72.1	57.1	2.9	6.3	2.1	45,704	23,334	2,180	1,219	2,361	3,183	4,443	+105
Kevin Garnett	14,662	1,462	34.5	17.8	10.0	3.7	1.3	1.4	7.2	14.5	49.7	0.1	0.4	27.5	3.3	4.2	78.9	54.6	2.2	7.8	2.2	50,418	26,071	5,445	1,859	2,037	3,179	3,561	+4913
Dwight Howard	14,627	1,242	31.8	15.7	11.8	1.3	0.9	1.8	5.7	9.7	58.7	0.0	0.1	21.4	4.3	7.6	56.7	60.2	3.3	8.4	2.7	39,435	19,485	1,676	1,081	2,228	3,302	3,912	+2878
Nate Thurmond	14,464	964	37.2	15.0	15.0	2.7	0.5	2.1	5.7	13.6	42.1				3.5	5.3	66.7	47.0	2.8	6.8		35,881	14,437	2,575	125	553		2,624
Walt Bellamy	14,241	1,043	37.3	20.1	13.7	2.4	0.7	0.6	7.6	14.7	51.6				4.9	7.8	63.2	55.4	3.4	6.2		38,940	20,941	2,544	52	48		3,536
Wes Unseld	13,769	984	36.4	10.8	14.0	3.9	1.1	0.6	4.4	8.7	50.9	0.0	0.0	50.0	1.9	3.0	63.3	53.7	3.5	8.4	1.9	35,832	10,624	3,822	628	367	579	2,762
Hakeem Olajuwon	13,748	1,238	35.7	21.8	11.1	2.5	1.7	3.1	8.7	17.0	51.2	0.0	0.1	20.2	4.4	6.2	71.2	55.3	3.3	7.8	3.0	44,222	26,946	3,058	2,162	3,830	3,667	4,383	+564
Shaquille O'Neal	13,099	1,207	34.7	23.7	10.9	2.5	0.6	2.3	9.4	16.1	58.2	0.0	0.0	4.5	4.9	9.3	52.7	58.6	3.5	7.4	2.7	41,918	28,596	3,026	739	2,732	3,310	4,146	+4887
Buck Williams	13,017	1,307	32.5	12.8	10.0	1.3	0.8	0.8	4.9	8.9	54.9	0.0	0.0	16.7	3.0	4.6	66.4	58.7	3.5	6.5	2.1	42,464	16,784	1,646	1,080	1,100	2,784	4,267	+155
Jerry Lucas	12,942	829	38.8	17.0	15.6	3.3	0.4	0.3	6.9	13.8	49.9				3.2	4.1	78.3	54.4	0.8	4.3		32,131	14,053	2,730	28	24		2,389
Bob Pettit	12,849	792	38.8	26.4	16.2	3.0			9.3	21.3	43.6				7.8	10.3	76.1	51.1				30,690	20,880	2,369				2,529
Charles Barkley	12,546	1,073	36.7	22.1	11.7	3.9	1.5	0.8	7.9	14.5	54.1	0.5	1.9	26.6	5.9	8.1	73.5	61.2	4.0	7.7	3.1	39,330	23,757	4,215	1,648	888	3,376	3,287	+532
Dikembe Mutombo	12,359	1,196	30.8	9.8	10.3	1.0	0.4	2.8	3.5	6.7	51.8	0.0	0.0	0.0	2.8	4.1	68.4	57.3	3.2	7.1	1.8	36,791	11,729	1,240	494	3,289	2,173	3,383	+1607
Paul Silas	12,357	1,254	27.9	9.4	9.9	2.1	0.6	0.2	3.4	7.9	43.2	0.0	0.0		2.5	3.8	67.3	48.9	3.6	5.6	1.4	34,989	11,782	2,572	358	138	333	3,105
Charles Oakley	12,205	1,282	31.4	9.7	9.5	2.5	1.1	0.3	3.8	8.0	47.1	0.1	0.2	25.3	2.1	2.7	76.1	52.6	3.1	6.5	2.2	40,280	12,417	3,217	1,351	384	2,785	4,421	+171
Dennis Rodman	11,954	911	31.7	7.3	13.1	1.8	0.7	0.6	3.0	5.8	52.1	0.1	0.4	23.1	1.2	2.0	58.4	54.6	4.8	8.4	1.6	28,839	6,683	1,600	611	531	1,484	2,843	+827
Kevin Willis	11,901	1,424	26.9	12.1	8.4	0.9	0.7	0.5	5.0	10.2	48.7	0.0	0.1	21.1	2.1	3.0	71.3	52.5	2.9	5.5	1.8	38,362	17,253	1,328	958	751	2,520	4,172	-825
Patrick Ewing	11,607	1,183	34.3	21.0	9.8	1.9	1.0	2.4	8.2	16.3	50.4	0.0	0.1	15.2	4.6	6.2	74.0	55.3	2.3	7.5	3.0	40,594	24,815	2,215	1,136	2,894	3,537	4,034	+412