Hoyt Wilhelm has given up the most career walks by a relief pitcher, with 661 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	Hoyt Wilhelm H. Wilhelm	661	1,018	124	103	.546	0	2.49	1,363	0	0	228	1872.1	1,436	518	636	125	51	651	58	7,619	83	6.55	3.18	2.06	0.60	17.9	8.7	1.12	.242	3.06	6.90
2	Rich Gossage R. Gossage	628	965	115	85	.575	0	2.77	1,340	0	0	310	1556.2	1,235	479	537	98	38	681	87	6,408	56	7.75	3.63	2.13	0.57	20.9	9.8	1.20	.264	3.10	7.14
3	Don McMahon D. McMahon	576	872	90	66	.577	0	2.94	992	0	0	152	1297.0	1,040	424	474	102	34	505	82	5,446	74	6.88	4.00	1.72	0.71	18.2	10.6	1.25	.251	3.29	7.22
4	Jesse Orosco J. Orosco	568	1,248	87	78	.527	0	3.12	1,169	0	0	144	1277.0	1,035	442	499	112	34	501	85	5,374	40	8.24	4.00	2.06	0.79	21.8	10.6	1.26	.264	3.52	7.29
5	Mark Clear M. Clear	551	480	71	48	.597	0	3.81	802	0	0	83	801.0	667	339	392	59	34	337	45	3,593	49	9.01	6.19	1.46	0.66	22.3	15.3	1.52	.283	4.40	7.49
6	Mitch Williams M. Williams	537	616	45	56	.446	0	3.57	652	0	0	192	681.0	522	270	304	48	52	419	39	3,066	44	8.62	7.10	1.21	0.63	21.3	17.5	1.56	.267	4.02	6.90
7	Johnny Klippstein J. Klippstein	526	550	59	41	.590	0	3.69	675	0	0	65	1038.1	931	426	490	101	32	275	51	4,494	63	5.85	4.56	1.28	0.88	15.0	11.7	1.40	.263	4.25	8.07
8	John Franco J. Franco	495	1,119	90	87	.508	0	2.89	975	0	0	424	1245.2	1,166	400	466	81	22	774	78	5,312	54	7.04	3.58	1.97	0.59	18.4	9.3	1.33	.290	3.37	8.42
9	Tug McGraw T. McGraw	494	785	89	69	.563	0	2.86	974	0	0	180	1301.1	1,104	414	467	74	20	541	123	5,391	51	6.74	3.42	1.97	0.51	18.1	9.2	1.23	.269	3.23	7.64
10	Kent Tekulve K. Tekulve	491	1,050	94	90	.511	0	2.85	779	0	0	184	1436.2	1,305	455	526	63	17	638	179	6,001	23	4.88	3.08	1.59	0.39	13.0	8.2	1.25	.267	3.30	8.18
11	Lindy McDaniel L. McDaniel	486	913	119	88	.575	0	3.14	1,165	0	0	174	1694.2	1,590	591	682	122	11	577	120	7,019	92	6.19	2.58	2.40	0.65	16.6	6.9	1.23	.280	3.62	8.44
12	Ted Abernathy T. Abernathy	484	647	57	48	.543	0	2.98	659	0	0	149	970.2	802	321	389	55	38	416	79	4,148	34	6.11	4.49	1.36	0.51	15.9	11.7	1.32	.257	3.61	7.44
13	Eric Plunk E. Plunk	482	673	63	42	.600	0	3.52	893	0	0	35	920.0	801	360	398	91	28	234	42	3,989	60	8.74	4.72	1.85	0.89	22.4	12.1	1.39	.285	3.89	7.84
14	Sparky Lyle S. Lyle	481	899	99	76	.566	0	2.88	873	0	0	238	1390.1	1,292	445	519	84	14	634	81	5,796	68	5.65	3.11	1.81	0.54	15.1	8.3	1.28	.278	3.36	8.36
15	Lee Smith L. Smith	474	1,016	71	87	.449	0	2.98	1,225	0	0	478	1252.1	1,095	415	456	87	9	802	100	5,230	46	8.80	3.41	2.58	0.63	23.4	9.1	1.25	.293	3.28	7.87
16	Bill Campbell B. Campbell	472	691	80	65	.552	0	3.44	829	0	0	126	1177.1	1,077	450	510	76	18	455	99	5,001	44	6.34	3.61	1.76	0.58	16.6	9.4	1.32	.278	3.90	8.23
17	Ron Perranoski R. Perranoski	467	736	79	74	.516	0	2.78	685	0	0	178	1170.2	1,091	362	440	48	24	458	121	5,002	28	5.27	3.59	1.47	0.37	13.7	9.3	1.33	.276	3.38	8.39
18	Fernando Rodney F. Rodney	464	951	48	71	.403	0	3.80	943	0	0	327	933.0	817	394	433	73	52	590	38	4,064	65	9.10	4.48	2.03	0.70	23.2	11.4	1.37	.294	4.18	7.88
19	Greg Minton G. Minton	463	703	57	62	.479	0	3.00	461	0	0	150	1089.1	1,034	363	422	42	15	415	129	4,626	50	3.81	3.83	1.00	0.35	10.0	10.0	1.37	.272	3.49	8.54
20	Mike Marshall M. Marshall	461	700	92	98	.484	0	2.96	813	0	0	188	1259.1	1,143	414	469	68	28	549	48	5,276	63	5.81	3.29	1.76	0.49	15.4	8.7	1.27	.275	3.35	8.17
21	Roberto Hernandez R. Hernandez	457	1,007	66	71	.482	0	3.42	940	0	0	326	1060.0	992	403	465	95	35	667	53	4,583	49	7.98	3.88	2.06	0.81	20.5	10.0	1.37	.294	3.95	8.42
22	Darold Knowles D. Knowles	455	757	63	71	.470	0	3.04	667	0	0	143	1052.1	964	356	413	62	37	417	83	4,478	28	5.70	3.89	1.47	0.53	14.9	10.2	1.35	.277	3.53	8.24
23	David Weathers D. Weathers	445	895	55	61	.474	0	3.80	758	0	0	75	1018.0	986	430	468	102	44	304	65	4,427	23	6.70	3.93	1.70	0.90	17.1	10.1	1.41	.287	4.14	8.72
24	Todd Jones T. Jones	443	981	58	62	.483	0	3.95	866	0	0	319	1067.2	1,063	468	513	93	38	619	62	4,629	43	7.30	3.73	1.95	0.78	18.7	9.6	1.41	.304	4.32	8.96
25	Michael Jackson M. Jackson	440	998	61	63	.492	0	3.33	983	0	0	142	1154.2	948	427	467	119	56	422	80	4,810	34	7.66	3.43	2.23	0.93	20.4	9.1	1.20	.258	3.64	7.39