Andre Miller has the most assists for the Cavaliers in a season, with 882 assists in 2001-02.

	NAME	AST	SEASON	TM	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	STL	BLK	TOV	PF	+/-
1	Andre Miller A. Miller	882	2001-02	CLE	81	37.3	16.5	4.7	10.9	1.6	0.4	5.9	12.9	45.4	0.3	1.1	25.3	4.5	5.5	81.7	53.8	1.3	3.3	3.0	3,023	1,335	379	126	34	245	228	-102
2	LeBron James L. James	747	2017-18	CLE	82	36.9	27.5	8.6	9.1	1.4	0.9	10.5	19.3	54.2	1.8	5.0	36.7	4.7	6.5	73.1	62.1	1.2	7.5	4.2	3,026	2,251	709	116	71	347	136	+104
3	John Bagley J. Bagley	735	1985-86	CLE	78	31.7	11.7	3.5	9.4	1.6	0.1	4.7	11.1	42.3	0.1	0.5	24.3	2.2	2.8	79.1	47.5	1.0	2.6	3.1	2,472	911	275	122	10	239	165
4	John Bagley J. Bagley	697	1984-85	CLE	81	29.6	9.9	3.6	8.6	1.6	0.1	4.2	8.6	48.8	0.0	0.3	11.5	1.5	2.1	74.9	52.4	0.7	2.9	2.6	2,401	804	291	129	5	207	132
5	Mark Price M. Price	666	1989-90	CLE	73	37.1	19.6	3.4	9.1	1.6	0.1	6.7	14.6	45.9	2.1	5.1	40.6	4.1	4.6	88.8	58.9	0.9	2.5	2.9	2,706	1,430	251	114	5	214	89
6	Andre Miller A. Miller	657	2000-01	CLE	82	34.7	15.8	4.4	8.0	1.5	0.3	5.5	12.2	45.2	0.2	0.8	26.6	4.6	5.5	83.3	54.1	1.1	3.2	3.2	2,848	1,296	360	119	28	265	229	-54
7	Brevin Knight B. Knight	656	1997-98	CLE	80	31.0	9.0	3.2	8.2	2.5	0.2	3.3	7.4	44.1	0.0	0.1	0.0	2.5	3.1	80.1	51.5	0.8	2.3	2.4	2,483	723	253	196	18	194	271	+298
8	LeBron James L. James	651	2009-10	CLE	76	39.0	29.7	7.3	8.6	1.6	1.0	10.1	20.1	50.3	1.7	5.1	33.3	7.8	10.2	76.7	60.4	0.9	6.4	3.4	2,966	2,258	554	125	77	261	119	+648
9	LeBron James L. James	646	2016-17	CLE	74	37.8	26.4	8.6	8.7	1.2	0.6	9.9	18.2	54.8	1.7	4.6	36.3	4.8	7.2	67.4	61.9	1.3	7.3	4.1	2,795	1,954	639	92	44	303	134	+483
10	Mark Price M. Price	631	1988-89	CLE	75	36.4	18.9	3.0	8.4	1.5	0.1	7.1	13.4	52.6	1.2	2.8	44.1	3.5	3.9	90.1	62.3	0.6	2.4	2.8	2,728	1,414	226	115	7	212	98
11	Lenny Wilkens L. Wilkens	628	1972-73	CLE	75	39.6	20.5	4.6	8.4			7.6	17.0	44.9				5.3	6.3	82.8	51.8				2,973	1,538	346				221
12	Foots Walker F. Walker	607	1979-80	CLE	76	31.9	9.4	3.8	8.0	2.0	0.2	3.4	7.5	45.4	0.0	0.1	11.1	2.6	3.2	80.2	52.7	1.0	2.8	2.1	2,422	712	287	155	12	157	202
13	Mark Price M. Price	602	1992-93	CLE	75	31.7	18.2	2.7	8.0	1.2	0.1	6.4	13.1	48.4	1.6	3.9	41.6	3.9	4.1	94.8	60.9	0.5	2.2	2.6	2,380	1,365	201	89	11	196	105
14	Geoff Huston G. Huston	590	1981-82	CLE	78	30.9	10.3	1.9	7.6	0.9	0.1	4.2	8.6	48.4	0.0	0.1	30.0	2.0	2.6	76.5	53.0	0.7	1.2	2.2	2,409	806	150	70	11	171	169
15	Mark Price M. Price	589	1993-94	CLE	76	31.4	17.3	3.0	7.8	1.4	0.1	6.3	13.2	47.8	1.6	3.9	39.7	3.1	3.5	88.8	58.6	0.5	2.5	2.5	2,386	1,316	228	103	11	189	93
16	LeBron James L. James	587	2008-09	CLE	81	37.7	28.4	7.6	7.2	1.7	1.1	9.7	19.9	48.9	1.6	4.7	34.4	7.3	9.4	78.0	59.1	1.3	6.3	3.0	3,054	2,304	613	137	93	241	139	+870
17	Darius Garland D. Garland	583	2021-22	CLE	68	35.7	21.7	3.3	8.6	1.3	0.1	8.0	17.3	46.2	2.6	6.7	38.3	3.2	3.5	89.2	57.6	0.6	2.7	3.6	2,430	1,473	224	89	7	248	115	+376
18	LeBron James L. James	577	2004-05	CLE	80	42.4	27.2	7.4	7.2	2.2	0.7	9.9	21.1	47.2	1.4	3.9	35.1	6.0	8.0	75.0	55.4	1.4	6.0	3.3	3,388	2,175	588	177	52	262	146	+152
19	LeBron James L. James	539	2007-08	CLE	75	40.4	30.0	7.9	7.2	1.8	1.1	10.6	21.9	48.4	1.5	4.8	31.5	7.3	10.3	71.2	56.8	1.8	6.1	3.4	3,027	2,250	592	138	81	255	165	+139
20	Darius Garland D. Garland	538	2022-23	CLE	69	35.5	21.6	2.7	7.8	1.2	0.1	7.6	16.4	46.2	2.4	6.0	41.0	4.0	4.7	86.3	58.7	0.4	2.3	2.9	2,447	1,490	185	85	9	199	148	+438
21	Mark Price M. Price	535	1991-92	CLE	72	29.7	17.3	2.4	7.4	1.3	0.2	6.1	12.5	48.8	1.4	3.6	38.7	3.8	4.0	94.7	61.0	0.5	1.9	2.2	2,138	1,247	173	94	12	159	113
22	Lenny Wilkens L. Wilkens	522	1973-74	CLE	74	33.6	16.4	3.7	7.1	1.3	0.2	6.2	13.4	46.5				3.9	4.9	80.1	52.6	1.1	2.7		2,483	1,213	277	97	17		165
23	LeBron James L. James	521	2005-06	CLE	79	42.5	31.4	7.0	6.6	1.6	0.8	11.1	23.1	48.0	1.6	4.8	33.5	7.6	10.3	73.8	56.8	0.9	6.1	3.3	3,361	2,478	556	123	66	260	181	+275
24	LeBron James L. James	514	2015-16	CLE	76	35.6	25.3	7.4	6.8	1.4	0.6	9.7	18.6	52.0	1.1	3.7	30.9	4.7	6.5	73.1	58.8	1.5	6.0	3.3	2,709	1,920	565	104	49	249	143	+618
25	LeBron James L. James	511	2014-15	CLE	69	36.1	25.3	6.0	7.4	1.6	0.7	9.0	18.5	48.8	1.7	4.9	35.4	5.4	7.7	71.0	57.7	0.7	5.3	3.9	2,493	1,743	416	109	49	272	135	+539