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1990 NBL Finals
League	National Basketball League
Sport	Basketball
Duration	26 September - 28 October 1990
Number of teams	6
TV partner(s)	Seven Network
NBL Finals
Champions	Perth Wildcats
Runners-up	Brisbane Bullets
Finals MVP	Ricky Grace
Seasons
← 1989 1991 →

The 1990 NBL Finals was the championship series of the 1990 season of Australia's National Basketball League (NBL) and the conclusion of the season's playoffs. The Perth Wildcats defeated the Brisbane Bullets in three games (2-1) for their first NBL championship.

The 1990 National Basketball League Finals started on 26 September and concluded on 28 October. The playoffs consisted of two best of three Elimination Finals, two best of three Semifinals and the best of three game Grand Final series. As the two top teams at the end of the regular season, the North Melbourne Giants and Eastside Spectres both qualified for home court advantage during the Semifinals.

Team	Finals appearance	Previous appearance	Previous best performance
North Melbourne Giants	3rd	1989	Champions (1989)
Eastside Spectres	6th	1985	Runner up (1981)
Brisbane Bullets	8th	1988	Champions (1985, 1987)
Perth Wildcats	4th	1989	Runner up (1987)
Melbourne Tigers	2nd	1989	5th in 1989
Sydney Kings	2nd	1989	4th in 1989

Pos	1990 NBL season v t e
	Team	Pld	W	L	PCT	Last 5	Streak	Home	Away	PF	PA	PP
1	North Melbourne Giants	26	20	6	76.92%	3–2	W3	10–3	10–3	3111	2889	107.68%
2	Eastside Spectres1	26	18	8	69.23%	3–2	W1	10–3	8–5	3028	2858	105.95%
3	Brisbane Bullets1	26	18	8	69.23%	3–2	W1	9–4	9–4	3053	2902	105.20%
4	Melbourne Tigers2	26	17	9	65.38%	4–1	L1	11–2	6–7	3226	3018	106.89%
5	Perth Wildcats2	26	17	9	65.38%	3–2	W2	11–2	6–7	2926	2791	104.84%
6	Sydney Kings3	26	16	10	61.54%	3–2	W2	9–4	7–6	2819	2710	104.02%
7	Canberra Cannons3	26	16	10	61.54%	4–1	L1	10–3	6–7	2918	2843	102.64%
8	Illawarra Hawks	26	13	13	50.00%	1–4	L2	9–4	4–9	3056	3094	98.77%
9	Adelaide 36ers	26	12	14	46.15%	3–2	L1	9–4	3–10	3042	2997	101.50%
10	Geelong Supercats	26	11	15	42.31%	3–2	W1	8–5	3–10	3002	2997	100.17%
11	Gold Coast Cougars	26	9	17	34.62%	1–4	L3	6–7	3–10	2880	2978	96.71%
12	Hobart Tassie Devils	26	8	18	30.77%	1–4	L1	5–8	3–10	2926	3149	92.92%
13	Newcastle Falcons	26	4	22	15.38%	3–2	W1	4–9	0–13	2796	3135	89.19%
14	Westside Saints	26	3	23	11.54%	0–5	L7	2–11	1–12	2713	3135	86.54%

Updated to match(es) played on 22 September 1990. Source: NBL.com.au

The NBL tie-breaker system as outlined in the NBL Rules and Regulations states that in the case of an identical win–loss record, the results in games played between the teams will determine order of seeding.

¹Head-to-Head between Eastside Spectres and Brisbane Bullets (1-1). Eastside Spectres won For and Against (+7).

²Head-to-Head between Melbourne Tigers and Perth Wildcats (1-1). Melbourne Tigers won For and Against (+11).

³Sydney Kings won Head-to-Head (2-0).

	Elimination Finals							Semifinals							Grand Final
								1	North Melbourne Giants	111	131	110
	4	Melbourne Tigers	100	113	X			5	Perth Wildcats	121	110	112
	5	Perth Wildcats	122	123	X										3	Brisbane Bullets	106	106	86
															5	Perth Wildcats	112	90	109
								2	Eastside Spectres	111	119	X
	3	Brisbane Bullets	87	124	107			3	Brisbane Bullets	121	120	X
	6	Sydney Kings	98	96	104

The 1990 Grand Final series between the Brisbane Bullets and Perth Wildcats saw a then record aggregate attendance for an NBL Grand Final series with 34,580 attending the 3 games. Game 2 at the Brisbane Entertainment Centre attracted a then record Australian indoor sporting attendance (and NBL record crowd) of 13,221.

• 1990 NBL season