Nolan Ryan has given up the most career walks by a starting pitcher, with 2,748 allowed.

	NAME	BB	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Nolan Ryan N. Ryan	2,748	773	318	291	.522	773	3.18	5,654	222	61	0	5326.0	3,880	1,884	2,151	314	156	0	75	22,310	275	9.55	4.64	2.06	0.53	25.3	12.3	1.24	.265	3.63	6.56
2	Steve Carlton S. Carlton	1,814	709	327	240	.577	709	3.20	4,104	254	55	0	5165.1	4,616	1,835	2,096	405	53	0	145	21,457	177	7.15	3.16	2.26	0.71	19.1	8.5	1.24	.279	3.65	8.04
3	Early Wynn E. Wynn	1,713	611	287	232	.553	611	3.56	2,255	289	49	0	4398.2	4,135	1,742	1,981	330	62	0	32	18,704	50	4.61	3.50	1.32	0.68	12.1	9.2	1.33	.265	4.05	8.46
4	Phil Niekro P. Niekro	1,703	716	302	262	.535	716	3.37	3,181	245	45	0	5149.2	4,815	1,928	2,227	465	116	0	73	21,585	207	5.56	2.98	1.87	0.81	14.7	7.9	1.27	.270	3.89	8.42
5	Bob Feller B. Feller	1,689	484	258	154	.626	484	3.25	2,491	279	44	0	3683.0	3,146	1,329	1,493	214	58	0	4	15,555	62	6.09	4.13	1.47	0.52	16.0	10.9	1.31	.264	3.65	7.69
6	Bobo Newsom B. Newsom	1,598	483	196	207	.486	483	4.00	1,969	246	31	0	3524.2	3,544	1,566	1,797	189	51	0		15,438	50	5.03	4.08	1.23	0.48	12.8	10.4	1.46	.288	4.59	9.05
7	Roger Clemens R. Clemens	1,579	707	354	184	.658	707	3.12	4,671	118	46	0	4913.2	4,182	1,706	1,884	363	159	0	63	20,227	143	8.56	2.89	2.96	0.66	23.1	7.8	1.17	.284	3.45	7.66
8	Tom Glavine T. Glavine	1,500	682	305	203	.600	682	3.54	2,607	56	25	0	4413.1	4,298	1,734	1,900	356	66	0	145	18,604	65	5.32	3.06	1.74	0.73	14.0	8.1	1.31	.280	3.87	8.76
9	Randy Johnson R. Johnson	1,491	603	301	166	.645	603	3.30	4,818	100	37	0	4103.0	3,320	1,504	1,692	408	188	0	37	16,937	109	10.57	3.27	3.23	0.89	28.4	8.8	1.17	.290	3.71	7.28
10	Red Ruffing R. Ruffing	1,463	538	264	212	.555	538	3.82	1,869	335	45	0	4132.2	4,094	1,755	2,016	249	51	0		17,623	44	4.07	3.19	1.28	0.54	10.6	8.3	1.34	.275	4.39	8.92
11	Tom Seaver T. Seaver	1,387	647	310	203	.604	647	2.86	3,634	231	61	0	4776.1	3,961	1,517	1,670	378	76	0	115	19,337	123	6.85	2.61	2.62	0.71	18.8	7.2	1.12	.258	3.15	7.46
12	Warren Spahn W. Spahn	1,383	665	358	227	.612	665	3.08	2,501	382	63	0	5101.0	4,703	1,743	1,951	422	39	0	52	20,960	74	4.41	2.44	1.81	0.74	11.9	6.6	1.19	.258	3.44	8.30
13	Earl Whitehill E. Whitehill	1,375	473	206	179	.535	473	4.38	1,294	226	16	0	3443.1	3,794	1,674	1,956	191	93	0		15,240	41	3.38	3.59	0.94	0.50	8.5	9.0	1.50	.293	5.11	9.92
14	Jack Morris J. Morris	1,356	527	251	182	.580	527	3.90	2,443	175	28	0	3746.1	3,501	1,624	1,779	383	56	0	94	15,791	201	5.87	3.26	1.80	0.92	15.5	8.6	1.30	.270	4.27	8.41
15	Bobby Witt B. Witt	1,350	397	138	156	.469	397	4.89	1,911	47	11	0	2398.1	2,425	1,302	1,424	247	38	0	35	10,715	125	7.17	5.07	1.42	0.93	17.8	12.6	1.57	.304	5.34	9.10
16	Mike Torrez M. Torrez	1,337	458	183	157	.538	458	3.92	1,369	117	15	0	2975.2	2,955	1,296	1,455	214	58	0	82	12,871	99	4.14	4.04	1.02	0.65	10.6	10.4	1.44	.277	4.40	8.94
17	Don Sutton D. Sutton	1,333	756	321	253	.559	756	3.27	3,545	178	58	0	5248.1	4,670	1,905	2,095	469	81	0	96	21,500	110	6.08	2.29	2.66	0.80	16.5	6.2	1.14	.261	3.59	8.01
18	Bert Blyleven B. Blyleven	1,316	685	286	248	.536	685	3.31	3,694	242	60	0	4957.1	4,614	1,823	2,021	428	155	0	67	20,429	114	6.71	2.39	2.81	0.78	18.1	6.4	1.20	.282	3.67	8.38
19	Gaylord Perry G. Perry	1,314	690	305	252	.548	690	3.10	3,372	303	53	0	5156.2	4,762	1,778	2,045	382	101	0	144	21,140	150	5.89	2.29	2.57	0.67	16.0	6.2	1.18	.274	3.57	8.31
20	Walter Johnson W. Johnson	1,295	666	376	249	.602	666	1.69	3,273	531	110	0	5552.0	4,610		1,766	90	191	0			144	5.31	2.10	2.53	0.15		5.8	1.06	.261	2.86	7.47
21	Bob Gibson B. Gibson	1,277	482	245	170	.590	482	2.88	3,044	255	56	0	3796.1	3,199	1,216	1,376	250	99	0	107	15,669	105	7.22	3.03	2.38	0.59	19.4	8.1	1.18	.268	3.26	7.58
22	Chuck Finley C. Finley	1,276	467	195	166	.540	467	3.84	2,516	63	15	0	3073.1	2,944	1,312	1,456	296	73	0	32	13,099	124	7.37	3.74	1.97	0.87	19.2	9.7	1.37	.296	4.26	8.62
23	Mark Langston M. Langston	1,272	428	178	158	.530	428	3.97	2,434	81	18	0	2916.0	2,676	1,286	1,417	302	46	0	31	12,365	87	7.51	3.93	1.91	0.93	19.7	10.3	1.35	.286	4.37	8.26
24	Sad Sam Jones S. Sam Jones	1,264	488	213	200	.516	488	3.80	1,122	250	36	0	3533.1	3,713	1,493	1,789	142	64	0		15,243	66	2.86	3.22	0.89	0.36	7.4	8.3	1.41	.282	4.56	9.46
25	Jim Palmer J. Palmer	1,259	521	262	148	.639	521	2.80	2,142	211	53	0	3857.0	3,256	1,202	1,334	292	37	0	36	15,714	83	5.00	2.94	1.70	0.68	13.6	8.0	1.17	.247	3.11	7.60