Moses Malone has gotten the most career offensive rebounds, with 6,731 rebounds.

who has the most career offensive rebounds

NAME	OREB	GP	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
Moses Malone	6,731	1,329	33.9	20.6	12.2	1.4	0.8	1.3	3.1	7.1	14.5	49.1	0.0	0.1	10.0	6.4	8.3	76.9	45,071	27,409	16,212	1,796	1,089	1,733	3,804	3,076
Robert Parish	4,598	1,611	28.4	14.5	9.1	1.4	0.8	1.5	2.1	6.0	11.1	53.7	0.0	0.0	0.0	2.5	3.5	72.1	45,704	23,334	14,715	2,180	1,219	2,361	3,183	4,443	+105
Buck Williams	4,526	1,307	32.5	12.8	10.0	1.3	0.8	0.8	2.1	4.9	8.9	54.9	0.0	0.0	16.7	3.0	4.6	66.4	42,464	16,784	13,017	1,646	1,080	1,100	2,784	4,267	+155
Dennis Rodman	4,329	911	31.7	7.3	13.1	1.8	0.7	0.6	1.6	3.0	5.8	52.1	0.1	0.4	23.1	1.2	2.0	58.4	28,839	6,683	11,954	1,600	611	531	1,484	2,843	+827
Charles Barkley	4,260	1,073	36.7	22.1	11.7	3.9	1.5	0.8	3.1	7.9	14.5	54.1	0.5	1.9	26.6	5.9	8.1	73.5	39,330	23,757	12,546	4,215	1,648	888	3,376	3,287	+532
Shaquille O'Neal	4,209	1,207	34.7	23.7	10.9	2.5	0.6	2.3	2.7	9.4	16.1	58.2	0.0	0.0	4.5	4.9	9.3	52.7	41,918	28,596	13,099	3,026	739	2,732	3,310	4,146	+4887
Dwight Howard	4,151	1,242	31.8	15.7	11.8	1.3	0.9	1.8	2.7	5.7	9.7	58.7	0.0	0.1	21.4	4.3	7.6	56.7	39,435	19,485	14,627	1,676	1,081	2,228	3,302	3,912	+2877
Kevin Willis	4,132	1,424	26.9	12.1	8.4	0.9	0.7	0.5	1.8	5.0	10.2	48.7	0.0	0.1	21.1	2.1	3.0	71.3	38,362	17,253	11,901	1,328	958	751	2,520	4,172	-825
Hakeem Olajuwon	4,034	1,238	35.7	21.8	11.1	2.5	1.7	3.1	3.0	8.7	17.0	51.2	0.0	0.1	20.2	4.4	6.2	71.2	44,222	26,946	13,748	3,058	2,162	3,830	3,667	4,383	+564
Charles Oakley	3,924	1,282	31.4	9.7	9.5	2.5	1.1	0.3	2.2	3.8	8.0	47.1	0.1	0.2	25.3	2.1	2.7	76.1	40,280	12,417	12,205	3,217	1,351	384	2,785	4,421	+171
Tim Duncan	3,859	1,392	34.0	19.0	10.8	3.0	0.7	2.2	2.4	7.4	14.6	50.6	0.0	0.1	17.9	4.2	6.1	69.6	47,368	26,496	15,091	4,225	1,025	3,020	3,381	3,304	+8910
Dikembe Mutombo	3,808	1,196	30.8	9.8	10.3	1.0	0.4	2.8	1.8	3.5	6.7	51.8	0.0	0.0	0.0	2.8	4.1	68.4	36,791	11,729	12,359	1,240	494	3,289	2,173	3,383	+1607
Andre Drummond	3,656	864	27.2	12.7	12.4	1.2	1.3	1.3	1.8	5.4	9.9	54.3	0.0	0.1	12.5	2.0	4.2	48.2	23,468	11,000	10,671	1,073	1,094	1,130	1,567	2,505	-574
Karl Malone	3,562	1,476	37.2	25.0	10.1	3.6	1.4	0.8	3.1	9.2	17.8	51.6	0.1	0.2	27.4	6.6	8.9	74.2	54,852	36,928	14,968	5,248	2,085	1,145	4,524	4,578	+3010
Tyson Chandler	3,529	1,160	27.2	8.2	9.0	0.8	0.5	1.2	1.4	3.1	5.1	59.7	0.0	0.0	0.0	2.1	3.2	64.4	31,609	9,509	10,467	967	630	1,335	1,656	3,268	+315
Horace Grant	3,467	1,165	33.2	11.2	8.1	2.2	1.0	1.0	1.1	4.7	9.2	50.9	0.0	0.1	6.3	1.8	2.6	69.2	38,621	12,996	9,443	2,575	1,143	1,136	1,303	2,832	+728
Otis Thorpe	3,446	1,257	31.7	14.0	8.2	2.2	0.7	0.4	2.2	5.5	10.0	54.6	0.0	0.1	4.7	3.1	4.5	68.7	39,822	17,600	10,370	2,730	840	501	2,774	4,146	-438
Ben Wallace	3,444	1,088	29.5	5.7	9.6	1.3	1.3	2.0	1.0	2.4	5.0	47.4	0.0	0.0	13.7	1.0	2.5	41.4	32,085	6,254	10,482	1,437	1,369	2,137	1,061	2,078	+2103
Larry Smith	3,401	883	25.9	6.7	9.2	1.1	0.8	0.5	1.4	2.9	5.4	53.1	0.0	0.0	0.0	1.0	1.8	53.1	22,879	5,904	8,125	941	699	457	1,280	2,966
A.C. Green	3,354	1,278	28.6	9.6	7.4	1.1	0.8	0.4	1.1	3.6	7.2	49.4	0.1	0.4	25.4	2.4	3.3	73.4	36,552	12,331	9,473	1,400	1,033	546	1,434	2,436	-378
Elton Brand	3,304	1,058	33.0	15.9	8.5	2.1	0.9	1.7	1.9	6.2	12.5	50.0	0.0	0.0	9.5	3.4	4.7	73.6	34,910	16,827	9,040	2,184	940	1,828	2,060	3,115	-1065
Dale Davis	3,303	1,094	27.1	8.0	7.9	0.9	0.6	1.2	1.0	3.3	6.2	53.0	0.0	0.0	0.0	1.4	2.5	56.2	29,606	8,706	8,605	978	691	1,270	1,090	2,878	+1134
Zach Randolph	3,279	1,116	31.0	16.6	9.1	1.8	0.7	0.3	2.1	6.7	14.1	47.1	0.2	0.7	27.3	3.1	4.1	76.4	34,616	18,578	10,208	2,049	834	301	2,290	2,629	-333
Michael Cage	3,227	1,140	26.1	7.3	7.6	0.9	0.9	0.6	1.0	2.9	5.7	51.5	0.0	0.0	0.0	1.4	2.2	66.4	29,716	8,278	8,646	1,057	1,050	725	1,161	2,581	-244
Kevin Garnett	3,209	1,462	34.5	17.8	10.0	3.7	1.3	1.4	2.2	7.2	14.5	49.7	0.1	0.4	27.5	3.3	4.2	78.9	50,418	26,071	14,662	5,445	1,859	2,037	3,179	3,561	+4913